+publisher:"Delft University of Technology" +contributor:("Kaminski, M.L.")

Delft University of Technology

1. Volpe, E. (author). Orthotropic Materials Stiness Identication by MNET based on Modal Analyis.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:ecfac639-b4e3-44bd-b103-18d17e7800ad

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The work focuses on the use of mixed numerical experimental techniques (MNETs) to identify the stiness material properties of a ship deck section demonstrator for… (more)

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The work focuses on the use of mixed numerical experimental techniques (MNETs) to identify the stiness material properties of a ship deck section demonstrator for naval shipbuilding application. The project arose from the resolution of Damen Schelde Naval Shipbuilding to develop a protocol to identify the material properties of bre reinforced composites by non-destructive methodologies in order to validate nite element models of real scaled structural components. The requirements set-up for this protocol were conceived to create a feasible user friendly system, applicable mostly using in-house equipments and software. MNETs combine experimental global results with numerical simulation results in order to obtain priori unknown characteristics or parameters minimizing the distance between the experimental and numerical outputs. The results obtained in the last 25 years have proved modal analysis to be a great experimental technique for this application. The structural parts of the deck used in the analysis consisted in two Carbon/Epoxy sandwich panels and one monolithic E-Glass girder. All of them were subjected to modal vibration tests (EMA) and numerical simulation by nite element methods (FEA). The two sets of results made up of numerical and experimental natural frequencies and mode shapes obtained respectively from the experimental modal analysis and the nite element analysis were correlated in pairs matching each numerical couple of natural frequency and mode shape to the equivalent experimental couple. These data set together with the stiness parameters to update are implemented in the material identication routine to computed the new updated stiness parameters. The parameters were input in the FE-model of the original deck section and compared with the test results to check if the new parameters generated a numerical simulation closer to the reality. This thesis demonstrated that the MNET based on modal analysis for composites sti- ness parameters identication can be successfully applied within the shipbuilding environment with low initial impact of investment. Further research will be necessary to improve the protocol and to back-check the results evaluating the update FE-model performance static simulations focused on stresses and strains. Investigation of the same procedure applied to the identication of other structural parameters such as: damping, damage etc. would be high interesting projects.

Mechanical, Maritime and Materials Engineering

Marine and Transport Technology

Ship Hydromechanics and Structures

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor).

Subjects/Keywords: composites; MNETs; EMA; material identification; non destructive test

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APA (6^th Edition):

Volpe, E. (. (2016). Orthotropic Materials Stiness Identication by MNET based on Modal Analyis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ecfac639-b4e3-44bd-b103-18d17e7800ad

Chicago Manual of Style (16^th Edition):

Volpe, E (author). “Orthotropic Materials Stiness Identication by MNET based on Modal Analyis.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:ecfac639-b4e3-44bd-b103-18d17e7800ad.

MLA Handbook (7^th Edition):

Volpe, E (author). “Orthotropic Materials Stiness Identication by MNET based on Modal Analyis.” 2016. Web. 06 Mar 2021.

Vancouver:

Volpe E(. Orthotropic Materials Stiness Identication by MNET based on Modal Analyis. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:ecfac639-b4e3-44bd-b103-18d17e7800ad.

Council of Science Editors:

Volpe E(. Orthotropic Materials Stiness Identication by MNET based on Modal Analyis. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:ecfac639-b4e3-44bd-b103-18d17e7800ad

Delft University of Technology

2. Tanis, A.H. (author). The Ocean Cleanup Barrier: A hydro-elastic model for fatigue lifetime assessment of The Ocean Cleanup barrier.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:6a62d2a0-cf7a-4c66-9edf-2d7e1bef26ac

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The Ocean Cleanup proposes to place a huge barrier in the ocean in order to clean it from plastic waste. Plastic will be caught as… (more)

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The Ocean Cleanup proposes to place a huge barrier in the ocean in order to clean it from plastic waste. Plastic will be caught as it flows towards the barrier on the ocean’s currents. As such a structure has no precedent, the concept has to be engineered from the bottom up and tested extensively. The barrier has a relatively shallow draft and moves in the splash zone, making it difficult to model the barrier’s behaviour. First, this study focusses on the development of a numerical two dimensional (2D) hydro-elastic model. This model has to be able to simulate the motions of such a barrier as observed in two dimensional tests and allows for a better understanding of the barrier’s hydrodynamic behaviour. The wave forces on the barrier are calculated with the Morison equation, which is often used in offshore hydrodynamics to calculate the wave forces on slender members. Including all details necessary for a correct simulation, the model is simplified wherever possible. This reduces runtime so that the model can be used for simulations for a fatigue assessment in the second part of this thesis. These assumptions are validated using the results from 2D tests carried out by Deltares. In addition, another student will develop a CFD model to validate these simplifications by an alternative way. The results of the validation using the 2D tests suggest that the motions can be simulated very well using this approach. The validation also shows that the horizontal position of the barrier seems to be mostly affected by the forces on the screen, while the vertical position is dominated by the buoyancy force of the floating boom. The second part of this study consists of a first qualitative assessment of the fatigue life of the barrier. Earlier tests have shown that the loads on the barrier are relatively low. This is why fatigue is expected to play an important role, given the fact that the barrier will be deployed for about 5 to 10 years. Fatigue life of the rubber component at the point where the floating boom is connected to the plastic capturing screen is investigated. To carry out this assessment, the prototype currently deployed in the North Sea is used as a starting point. The hydro-elastic model from the first part of this thesis is used to simulate the barrier’s motions. Using a structural model which simulates the rubber’s behaviour, these motions are superimposed from the global to the local structure. For this structural model a hyperelastic material that resembles the rubber component is assumed. After superimposing the barrier’s motions, fatigue life of the barrier is calculated using a damage model suitable for rubber. The results show that fatigue life seems to be dominated by seastates with steep waves or with large velocity and acceleration amplitudes. Also, the fatigue life in the Pacific Ocean will be about two and a half to three times longer than for one deployed in the North Sea.

Mechanical, Maritime and Materials Engineering

Marine and Transport Technology

Offshore & Dredging Engineering

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor).

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tanis, A. H. (. (2016). The Ocean Cleanup Barrier: A hydro-elastic model for fatigue lifetime assessment of The Ocean Cleanup barrier. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:6a62d2a0-cf7a-4c66-9edf-2d7e1bef26ac

Chicago Manual of Style (16^th Edition):

Tanis, A H (author). “The Ocean Cleanup Barrier: A hydro-elastic model for fatigue lifetime assessment of The Ocean Cleanup barrier.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:6a62d2a0-cf7a-4c66-9edf-2d7e1bef26ac.

MLA Handbook (7^th Edition):

Tanis, A H (author). “The Ocean Cleanup Barrier: A hydro-elastic model for fatigue lifetime assessment of The Ocean Cleanup barrier.” 2016. Web. 06 Mar 2021.

Vancouver:

Tanis AH(. The Ocean Cleanup Barrier: A hydro-elastic model for fatigue lifetime assessment of The Ocean Cleanup barrier. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:6a62d2a0-cf7a-4c66-9edf-2d7e1bef26ac.

Council of Science Editors:

Tanis AH(. The Ocean Cleanup Barrier: A hydro-elastic model for fatigue lifetime assessment of The Ocean Cleanup barrier. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:6a62d2a0-cf7a-4c66-9edf-2d7e1bef26ac

Delft University of Technology

3. Verlaan, S.T. (author). Comparative analysis of common practice fatigue versus multiaxial fatigue applied to a floating unit for wind turbine installation.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:bac5bdd3-64f9-4c50-a24d-c29c650644a4

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The objective of the thesis is to compare a common practice fatigue analysis with a multiaxial fatigue analysis for an installation unit that can install… (more)

Subjects/Keywords: multiaxial fatigue

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Verlaan, S. T. (. (2015). Comparative analysis of common practice fatigue versus multiaxial fatigue applied to a floating unit for wind turbine installation. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:bac5bdd3-64f9-4c50-a24d-c29c650644a4

Chicago Manual of Style (16^th Edition):

Verlaan, S T (author). “Comparative analysis of common practice fatigue versus multiaxial fatigue applied to a floating unit for wind turbine installation.” 2015. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:bac5bdd3-64f9-4c50-a24d-c29c650644a4.

MLA Handbook (7^th Edition):

Verlaan, S T (author). “Comparative analysis of common practice fatigue versus multiaxial fatigue applied to a floating unit for wind turbine installation.” 2015. Web. 06 Mar 2021.

Vancouver:

Verlaan ST(. Comparative analysis of common practice fatigue versus multiaxial fatigue applied to a floating unit for wind turbine installation. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:bac5bdd3-64f9-4c50-a24d-c29c650644a4.

Council of Science Editors:

Verlaan ST(. Comparative analysis of common practice fatigue versus multiaxial fatigue applied to a floating unit for wind turbine installation. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:bac5bdd3-64f9-4c50-a24d-c29c650644a4

Delft University of Technology

4. Wang, X. (author). On the use of path-dependent maximum range method in critical plane based multi-axial fatigue criteria.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:00d4604a-f0cb-45de-ae0a-287a624c74fe

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Multi-axial stress state is the stress state where several stress components exist. Multi-axial fatigue assessment is very challenging due to complex stress state and component… (more)

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Multi-axial stress state is the stress state where several stress components exist. Multi-axial fatigue assessment is very challenging due to complex stress state and component geometry. Many multi-axial fatigue assessment criteria simplify the complex multi-axial stress into an equivalent uniaxial stress. Critical plane method which bases on observation of fatigue cracking initiation and propagation behavior of smooth specimens is widely used. The critical plane is usually determined by maximizing the amplitudes and/or values of some stress components, and the parameters obtained on the critical plane are used to analyze fatigue strength. For uniaxial loading, rainflow counting method can be used to evaluate the complex variable-amplitude stress history. However, this method cannot be applied to non-proportional multi-axial stress state. The so-called Path-Dependent Maximum range (PDMR) method is proposed by Zhigang Wei and Pingsha Dong to evaluate complex multi-axial stress history. This method uses the calculated effective stress range at mapped normal-shear stress space to evaluate the fatigue damage. The aim of this thesis is to explore the feasibility by applying PDMR method to determine equivalent stress amplitude for critical plane method. PDMR matlab algorithm is programed based on publications in literature. Several experimental results related to high cycle fatigue strength for smooth specimens, subjected to proportional or non-proportional loading with different mean stress values and various stress ratios, are analyzed by employing the proposed PDMR based critical plane method and other criteria available in the literature, such as Findley, McDiarmid, Matake, Dang Van, Papadopoulos and modified Carpinteri-Spagnoli (C-S) criterion. The proposed method shows a good estimation capacity as compared to the aforementioned criteria. Fracture plane orientation determination method is proposed based on observation of plotted equivalent stress amplitude on each material plane calculated by PDMR method. This method shows better estimation capacity than average maximum principal stress method used in modified C-S criterion for the experimental data examined.

Structural design and analysis

Offshore and Dredging Engineering

Mechanical, Maritime and Materials Engineering

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor).

Subjects/Keywords: PDMR; Critical plane method; Fracture plane

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, X. (. (2016). On the use of path-dependent maximum range method in critical plane based multi-axial fatigue criteria. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:00d4604a-f0cb-45de-ae0a-287a624c74fe

Chicago Manual of Style (16^th Edition):

Wang, X (author). “On the use of path-dependent maximum range method in critical plane based multi-axial fatigue criteria.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:00d4604a-f0cb-45de-ae0a-287a624c74fe.

MLA Handbook (7^th Edition):

Wang, X (author). “On the use of path-dependent maximum range method in critical plane based multi-axial fatigue criteria.” 2016. Web. 06 Mar 2021.

Vancouver:

Wang X(. On the use of path-dependent maximum range method in critical plane based multi-axial fatigue criteria. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:00d4604a-f0cb-45de-ae0a-287a624c74fe.

Council of Science Editors:

Wang X(. On the use of path-dependent maximum range method in critical plane based multi-axial fatigue criteria. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:00d4604a-f0cb-45de-ae0a-287a624c74fe

Delft University of Technology

5. Van den Berg, N.G. (author). A prediction method for the underwater acoustic signature of steel surface vessels, allowing for a quick approximation during the design stage.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:e8a93a91-7a7b-4a78-a16e-d4693ae1c0cd

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This paper describes a prediction method for the contribution of the main onboard machinery to the underwater acoustic signature of steel surface vessels that can… (more)

Subjects/Keywords: Underwater radiated sound; Prediction method; Steel surface vessels; Statistical Energy Analysis

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APA (6^th Edition):

Van den Berg, N. G. (. (2015). A prediction method for the underwater acoustic signature of steel surface vessels, allowing for a quick approximation during the design stage. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e8a93a91-7a7b-4a78-a16e-d4693ae1c0cd

Chicago Manual of Style (16^th Edition):

Van den Berg, N G (author). “A prediction method for the underwater acoustic signature of steel surface vessels, allowing for a quick approximation during the design stage.” 2015. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:e8a93a91-7a7b-4a78-a16e-d4693ae1c0cd.

MLA Handbook (7^th Edition):

Van den Berg, N G (author). “A prediction method for the underwater acoustic signature of steel surface vessels, allowing for a quick approximation during the design stage.” 2015. Web. 06 Mar 2021.

Vancouver:

Van den Berg NG(. A prediction method for the underwater acoustic signature of steel surface vessels, allowing for a quick approximation during the design stage. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:e8a93a91-7a7b-4a78-a16e-d4693ae1c0cd.

Council of Science Editors:

Van den Berg NG(. A prediction method for the underwater acoustic signature of steel surface vessels, allowing for a quick approximation during the design stage. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:e8a93a91-7a7b-4a78-a16e-d4693ae1c0cd

Delft University of Technology

6. Nugteren, F.A. (author). Flexible Riser Fatigue Analysis: Studying Conservatism in Flexible Riser Fatigue Analysis and Development of an Engineering Model to Study Influencing Parameters of Local Wire Stress.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:80488024-c2be-4601-832f-050811e5736a

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First, the focus of a literature review was on industry visions and fatigue life assessments. Hence fatigue analysis methodology —with a special focus on local… (more)

Subjects/Keywords: fatigue analysis; flexible risers; local analysis; wire stress

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nugteren, F. A. (. (2015). Flexible Riser Fatigue Analysis: Studying Conservatism in Flexible Riser Fatigue Analysis and Development of an Engineering Model to Study Influencing Parameters of Local Wire Stress. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:80488024-c2be-4601-832f-050811e5736a

Chicago Manual of Style (16^th Edition):

Nugteren, F A (author). “Flexible Riser Fatigue Analysis: Studying Conservatism in Flexible Riser Fatigue Analysis and Development of an Engineering Model to Study Influencing Parameters of Local Wire Stress.” 2015. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:80488024-c2be-4601-832f-050811e5736a.

MLA Handbook (7^th Edition):

Nugteren, F A (author). “Flexible Riser Fatigue Analysis: Studying Conservatism in Flexible Riser Fatigue Analysis and Development of an Engineering Model to Study Influencing Parameters of Local Wire Stress.” 2015. Web. 06 Mar 2021.

Vancouver:

Nugteren FA(. Flexible Riser Fatigue Analysis: Studying Conservatism in Flexible Riser Fatigue Analysis and Development of an Engineering Model to Study Influencing Parameters of Local Wire Stress. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:80488024-c2be-4601-832f-050811e5736a.

Council of Science Editors:

Nugteren FA(. Flexible Riser Fatigue Analysis: Studying Conservatism in Flexible Riser Fatigue Analysis and Development of an Engineering Model to Study Influencing Parameters of Local Wire Stress. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:80488024-c2be-4601-832f-050811e5736a

Delft University of Technology

7. Mao, F. (author). Longitudinal ultimate bending strength analysis of ship structure for emergency response.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:17de3d71-a962-4117-bbb1-ecffef13c058

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The last three years have witnessed many maritime accidents (like “Costa Concordia”, “Mol Comfort”, “MV Smart”, etc), which led to serious consequences including the loss… (more)

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The last three years have witnessed many maritime accidents (like “Costa Concordia”, “Mol Comfort”, “MV Smart”, etc), which led to serious consequences including the loss of human life and asset and environment pollution. In order to mitigate loss, maritime emergency response requires time-saving. So, a fast numerical tool is very important for supporting decision making and related engineering work in emergency case. Currently, most fast numerical modeling method is either by manually laboriously building or requires 3D or 2D AUTO CAD drawing, which is very difficult to obtain in emergency situation. Thus this thesis is aiming to propose a fast numerical method based on limited information from emergency situation. Based on the fast numerical model, structural analysis, weight estimation, etc, can be assessed, thus supporting decision making and engineering work. In consistent with the emergency situation, global longitudinal bending strength is analyzed based on the fast numerical model in the present work. This thesis is divided into 3 parts: rapid numerical method and a corresponding numerical tool for container ship; verification of this numerical tool in global structural response and longitudinal ultimate bending strength assessment for container ship; longitudinal ultimate strength assessment for other types of structure like OT, BC, FPSO, etc. Firstly, in this thesis, a global data structure for storing ship geometric information from available drawings after emergency situation is developed in this thesis. Based on this data structure, a rapid numerical modeling method is developed in the present work. Then, a corresponding rapid numerical tool in container ship is produced. Secondly, the fast numerical tool is validated in structural response of global FE model of container ship. And the failure mechanism of container ship under sagging is investigated by both numerical model and analytical model. Based on it, the longitudinal ultimate bending moment is obtained by the generated fast numerical model. Finally, for other type of ship structures like OT, BC, FPSO, etc, the failure mode of the structure under pure bending is investigated by nonlinear finite element analysis. Based on the failure mode, a simplified method for assessing ultimate bending moment by NLFEM is proposed and validated with experiment result and ISSC benchmark study. This validated fast numerical tool for container ship can be used for structural analysis, structural weight estimation etc, and thus supporting engineering in emergency case. And the generic fast numerical method can be further applied for other types of ship structure, like OT, BC, FPSO etc. A corresponding simplified NLFEM method can be used for assessing maximum bending capacity and thus supporting lifting engineering work.

Offshore and Dredging Engineering

Ship Hydromechanics and Structures

Mechanical, Maritime and Materials Engineering

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor).

Subjects/Keywords: ship emergency; generic rapid numerical modeling method; ultimate strength; failure mechanism; non-linear finite element method

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mao, F. (. (2015). Longitudinal ultimate bending strength analysis of ship structure for emergency response. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:17de3d71-a962-4117-bbb1-ecffef13c058

Chicago Manual of Style (16^th Edition):

Mao, F (author). “Longitudinal ultimate bending strength analysis of ship structure for emergency response.” 2015. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:17de3d71-a962-4117-bbb1-ecffef13c058.

MLA Handbook (7^th Edition):

Mao, F (author). “Longitudinal ultimate bending strength analysis of ship structure for emergency response.” 2015. Web. 06 Mar 2021.

Vancouver:

Mao F(. Longitudinal ultimate bending strength analysis of ship structure for emergency response. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:17de3d71-a962-4117-bbb1-ecffef13c058.

Council of Science Editors:

Mao F(. Longitudinal ultimate bending strength analysis of ship structure for emergency response. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:17de3d71-a962-4117-bbb1-ecffef13c058

Delft University of Technology

8. Zahiri Esfahani, F. (author). Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:8455c2e9-1106-42b5-b5fc-ada198db6c51

► Structural blast analysis is usually done with two load levels for different design stages; the Strength Level Blast, SLB, and the Ductility Level Blast, DLB.… (more)

▼ Structural blast analysis is usually done with two load levels for different design stages; the Strength Level Blast, SLB, and the Ductility Level Blast, DLB. Strength Level Blast is the lower magnitude overpressure (with a higher frequency of occurrence and lower consequence) and Ductility Level Blast is the higher magnitude overpressure (with a lower frequency of occurrence and significant consequence). The objective of this thesis was to try to find an estimated relationship between the linear elastic analysis using Strength Level Blast pressure, and nonlinear plastic analysis using Ductility Level Blast pressure by making an analogy to the procedures of seismic design of structures. For that, four hypothetical methods were introduced and examined to find the one that can provide a better estimated relationship. Furthermore, four SBM topside modules with 22 blast directions were analyzed. Firstly, linear elastic analyses, by means of redundancy analysis, were performed to find the Strength Level Blast capacities. Secondly, nonlinear plastic analyses, by means of static pushover analysis, were performed to obtain the pushover curves. Subsequently, several important parameters that were required for finding the Ductility Level Blast capacities were obtained from the pushover curves, namely, ultimate limit capacities and their respective displacements, the reserve strength ratios and the ductility ratios. In the next stage, the four proposed methods were tested by means of introducing four hypothetical methods each with a different reserve capacity factor, Cr; next, the Strength Level Blast capacities were scaled with these factors to obtain the Ductility Level Blast pressures. These four methods were Displacement Ratios Method, a comparison of ISO 19902 for Earthquake Assessment of Fixed Offshore Platforms for Blast Assessments, the Energy Equivalence Method and the Behavior Parameters’ Method. Displacement Ratios’ Method assumes the Cr value to be based on the ratio of the ultimate deflection of the structure to its deflection under the Strength Level Blast pressure. Thus, this method assumes that the structure will continue to behave linearly up until the ultimate capacity of the structure has been reached, which in turn will be the Ductility Level Blast capacity of the structure. The method described by ISO 19902 for earthquake assessment of fixed offshore platforms assumes the Cr value to be based on the two scaling parameters; the first parameter was the same as the previous method, and the second parameter takes into account the energy absorbed by the structure after the ultimate capacity of the structure has been reached. The Energy Equivalence Method, the Cr value was obtained by comparing the energy absorbed by the structure until the ultimate capacity has been reached with the energy that would be absorbed if the structure was assumed to behave linearly until the Ductility Level Blast capacity was reached. The Behavior Parameters’ Method the Cr value was also obtained by equating the energy… Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor).

Subjects/Keywords: Structural Steel; Blast Analysis; Ductility Level Blast; DLB; Strength Level Blast; SLB; Progressive Collapse Analysis; Pushover Analysis; Structural Steel Linear and Nonlinear Comparison; Elasto-Plastic

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zahiri Esfahani, F. (. (2016). Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:8455c2e9-1106-42b5-b5fc-ada198db6c51

Chicago Manual of Style (16^th Edition):

Zahiri Esfahani, F (author). “Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:8455c2e9-1106-42b5-b5fc-ada198db6c51.

MLA Handbook (7^th Edition):

Zahiri Esfahani, F (author). “Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method.” 2016. Web. 06 Mar 2021.

Vancouver:

Zahiri Esfahani F(. Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:8455c2e9-1106-42b5-b5fc-ada198db6c51.

Council of Science Editors:

Zahiri Esfahani F(. Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:8455c2e9-1106-42b5-b5fc-ada198db6c51

Delft University of Technology

9. Bos, R.W. (author). Hydrodynamic load simplification: Through Ultimate Strength of a Stiffened Panel.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:0ca23d29-2338-46fc-b55e-35613372586c

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Stiffened panels at the water line of a ship experience in-plane loads due to ship bending and torsion, as well as out-of-plane loads due to… (more)

Subjects/Keywords: stiffened panel; wave impact; ultimate strength; load simplification

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APA (6^th Edition):

Bos, R. W. (. (2015). Hydrodynamic load simplification: Through Ultimate Strength of a Stiffened Panel. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:0ca23d29-2338-46fc-b55e-35613372586c

Chicago Manual of Style (16^th Edition):

Bos, R W (author). “Hydrodynamic load simplification: Through Ultimate Strength of a Stiffened Panel.” 2015. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:0ca23d29-2338-46fc-b55e-35613372586c.

MLA Handbook (7^th Edition):

Bos, R W (author). “Hydrodynamic load simplification: Through Ultimate Strength of a Stiffened Panel.” 2015. Web. 06 Mar 2021.

Vancouver:

Bos RW(. Hydrodynamic load simplification: Through Ultimate Strength of a Stiffened Panel. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:0ca23d29-2338-46fc-b55e-35613372586c.

Council of Science Editors:

Bos RW(. Hydrodynamic load simplification: Through Ultimate Strength of a Stiffened Panel. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:0ca23d29-2338-46fc-b55e-35613372586c

Delft University of Technology

10. Haag, S.R. (author). Ship Grounding Damage: An Estimate through Acceleration Measurements.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:ddb095c8-45e6-466b-a724-ff8ff1f4e3c2

► When the Costa Concordia ran aground in Italy, it took 69 minutes to make the critical decision to abandon ship. The crew was unaware of… (more)

▼ When the Costa Concordia ran aground in Italy, it took 69 minutes to make the critical decision to abandon ship. The crew was unaware of the sheer size of the damage and the impact on the ship’s stability for too long. Instantaneous insight into the structural damage of the ship after running aground may be of great aid in such disasters. A possible way to acquire such instantaneous insight is by measuring accelerations during the grounding accident and derive the extent of the damage from analysis of these signals. Such acceleration measurements could, nowadays, even be done using a simple smart phone. The Costa Concordia hit a rock and sustained a so-called raking damage. Friction, plastic deformation and rupture are the mechanisms that form the damage, each dissipating energy in a different way. It should be possible to distinguish the energy dissipation due to these separate mechanisms from merely analysing acceleration measurement data of the vessel and thus estimate the extent of the sustained structural damage. In a ship grounding, the crew want to know whether or not the hull is breached. The structural damage of interest is therefore rupture of the hull plating. This thesis zooms in on detection of plate rupture only. It is based on experimental research exploring detection of plate rupture in a raking damage scenario by analysing the acceleration measurement data from a series of drop tower experiments. The series of drop tower experiments are designed and prepared by doing Finite Element Analysis (FEA). As part of these preparations, a sensitivity analysis is performed. The sensitivity analysis shows that the Finite Element Model (FEM) results are particularly sensitive to two input parameters: the failure criterion and the friction coefficient. So failure and friction are the two determining phenomena in a raking damage scenario in terms of energy dissipation. Besides the acceleration measurements, which form the core of this research, failure and friction are studied in detail. In total four raking damage experiments were performed on grade-A steel specimens of 6 mm thickness. The drop tower experiments are performed in such a way that they simulate a raking damage scenario realistically. During the experiment, the accelerations and loads on the sphere shaped indenter are measured. Two high speed cameras are set up to perform Digital Image Correlation (DIC) measurements with 2500 fps, in order to capture the exact moment of plate rupture. Using the high speed DIC measurements, strains at plate rupture were found and a Fracture Forming Limit Curve (FFLC) was calibrated. A special method of calibration was used, that uses only one single strain-state to calibrate the FFLC. As a comparison, a second FFLC was calibrated using the results of a standard uni-axial tensile test. The FFLC calibrated with the tensile test provides a very accurate prediction of the strains at failure for the raking damage experiments. The acceleration measurement data of all four raking damage experiments show an abrupt decrease… Advisors/Committee Members: Hoogeland, M.G. (mentor), L.%22%29&pagesize-30">Kaminski, M.L. (mentor).

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APA (6^th Edition):

Haag, S. R. (. (2017). Ship Grounding Damage: An Estimate through Acceleration Measurements. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ddb095c8-45e6-466b-a724-ff8ff1f4e3c2

Chicago Manual of Style (16^th Edition):

Haag, S R (author). “Ship Grounding Damage: An Estimate through Acceleration Measurements.” 2017. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:ddb095c8-45e6-466b-a724-ff8ff1f4e3c2.

MLA Handbook (7^th Edition):

Haag, S R (author). “Ship Grounding Damage: An Estimate through Acceleration Measurements.” 2017. Web. 06 Mar 2021.

Vancouver:

Haag SR(. Ship Grounding Damage: An Estimate through Acceleration Measurements. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:ddb095c8-45e6-466b-a724-ff8ff1f4e3c2.

Council of Science Editors:

Haag SR(. Ship Grounding Damage: An Estimate through Acceleration Measurements. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:ddb095c8-45e6-466b-a724-ff8ff1f4e3c2

Delft University of Technology

11. Tromp, J.M. (author). The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:7dc23b81-ad4a-41b0-88c6-6b97641547e9

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Heerema Marine Contractors is looking into a new semi-submersible crane vessel concept with an asymmetric hull. The necessity of braces (connections between the portside and… (more)

Subjects/Keywords: semi-submersible; structural optimization; multiaxial fatigue

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APA (6^th Edition):

Tromp, J. M. (. (2016). The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:7dc23b81-ad4a-41b0-88c6-6b97641547e9

Chicago Manual of Style (16^th Edition):

Tromp, J M (author). “The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:7dc23b81-ad4a-41b0-88c6-6b97641547e9.

MLA Handbook (7^th Edition):

Tromp, J M (author). “The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment.” 2016. Web. 06 Mar 2021.

Vancouver:

Tromp JM(. The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:7dc23b81-ad4a-41b0-88c6-6b97641547e9.

Council of Science Editors:

Tromp JM(. The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:7dc23b81-ad4a-41b0-88c6-6b97641547e9

Delft University of Technology

12. Sonnema, M. (author). Influence of cyclic loads on epoxy coated carbon steel performance.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:c1091f45-e835-4b89-b252-2e7670489aca

► Marine pipelines at the sea bottom are protected by a coating to prevent corrosion. Lifetime of coating are limited by coatings delamination. Delamination is caused… (more)

▼ Marine pipelines at the sea bottom are protected by a coating to prevent corrosion. Lifetime of coating are limited by coatings delamination. Delamination is caused by ingression of seawater through the coating and later attack of the metal. A zirconium conversion pre-treatment applied on the metal is used to improve the adhesion between the coating and metal substrate. During in-service lifetime, pipelines encounter cyclic loadings due to vortex induced vibrations or movements of fluid within the pipe which might affect the mechanical properties of the coating. The goal of this work is to investigate the effect of these cyclic loadings combined with immersion period on the epoxy coatings on the steel with and without a zirconium conversion layer. Samples are stressed in the elastic, and plastic region (of the steel) in uniaxial tensile direction, and also they strained up to 5% to investigate the effect of mechanical damage. After these tests, samples are immersed in NaCl solution for 30 days to evaluate the barrier properties of the coatings and compared their performance with the unstressed immersed samples. Electrochemical impedance spectroscopy (EIS) is used to monitor the protective properties of the coatings. Finally, adhesion tests are performed to see whether or not the adhesion strength of epoxy decreases by the combination of mechanical loading and immersion. Immersion of 30 days does not affect the coating barrier properties and Epoxy coated systems with and without Zr-pretreatment showed high barrier properties after 30 days of immersion in corrosive environment. Coated samples with and without Zr-pretreatment were not affected by cyclic loading in the elastic region. No cracks in the coatings were detected. Only a slightly increased of the roughness was noticed. EIS results showed that barrier properties of the coatings after elastic cyclic-loading are not affected and remained constant after the 30 days of immersion. Different behaviour after cyclic loading in the plastic region between treated and un-treated samples is observed. Samples without pre-treatment showed a decreasing of the barrier properties during the immersion test while treated-samples showed still high performance. An explanation is that cyclic loading in the plastic region affect significantly the polymer structure, creating a more open network. Then the penetration of solution is facilitated, affecting the protection properties of the coating. Additionally the roughness of the coatings increased significantly for (un)-treated samples. This is caused by a rougher steel substrate and the formation of shear bands in the epoxy coating. However the pre-treated samples showed no changes in the barrier properties. This may be associated to the better adhesion between the polymer and coating by the presence of zirconium layer. The adhesion strength is significantly affected by elastic/ plastic cyclic loading and 30 days of immersion for untreated and treated samples. More investigation is needed to discover if cyclic loading affects the… Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor), Garcia Gonzalez, Y. (mentor).

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sonnema, M. (. (2016). Influence of cyclic loads on epoxy coated carbon steel performance. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c1091f45-e835-4b89-b252-2e7670489aca

Chicago Manual of Style (16^th Edition):

Sonnema, M (author). “Influence of cyclic loads on epoxy coated carbon steel performance.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:c1091f45-e835-4b89-b252-2e7670489aca.

MLA Handbook (7^th Edition):

Sonnema, M (author). “Influence of cyclic loads on epoxy coated carbon steel performance.” 2016. Web. 06 Mar 2021.

Vancouver:

Sonnema M(. Influence of cyclic loads on epoxy coated carbon steel performance. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:c1091f45-e835-4b89-b252-2e7670489aca.

Council of Science Editors:

Sonnema M(. Influence of cyclic loads on epoxy coated carbon steel performance. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:c1091f45-e835-4b89-b252-2e7670489aca

Delft University of Technology

13. Van der Laag, D.A.M. (author). Design and Calibration of a Multi-Axial Load Cell for Quasi-Static and Dynamic Testing.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:d460e61d-4d29-4f30-8a90-86a104dc81ad

►

In structural analysis, multi-axial loads are often treated as a superposition of individual load com- ponents. Although this proves to be sufficient for static analyses,… (more)

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In structural analysis, multi-axial loads are often treated as a superposition of individual load com- ponents. Although this proves to be sufficient for static analyses, for dynamic and especially fatigue assessments, this sometimes leads to extreme overestimation of loads. In turn this results in highly over-dimensioning of structures to prevent failure due to fatigue. To provide a means for multi-axial testing, a load cell is designed, for measuring combinations of both forces and moments up to excitations of fe = 30 [Hz]. As the load cell is intended for validation of theoretical and experimental research, its accuracy must be as high as reasonably possible. Therefore, the question to be answered is how a load cell is created such, that it measures three forces and three moments independently and at a high accuracy. The load cell consists of a steel hollow circular cross-section, with flanges and a bolt-hole pattern at both ends. The transition to the flanges is smoothed with a varying wall thickness to reduce stress concentrations. The external dimensions and geometry are dictated by the experimental set-up of the first tests after calibration and by the required fatigue properties. The load cell is instrumented with 32 strain gauges, connected into 8 Wheatstone-bridges. Additionally, 32 Fibre Bragg Grating (FBG) sensors are applied to the outer surface and another 14 FBG sensors are applied inside the load cell. Calibration of the load cell is performed for tension and compression only, Fz = ±1000 [kN]. The acquired data is analysed using both a linear and non-linear regression models, based on a maximum likelihood analysis. This data is used to define and assess the sensor sensitivity, non-linearity and the uncertainty (as a quantified direct pendant for accuracy). The results show a non-linearity in Fz measurements of less than 0:3% and an uncertainty of less than 0:4%, for the full working range of Fz = ±1000 [kN]. The tests show incredibly small transverse sensitivities, confirming good isolation of separate load components. For full commissioning of the load cell, however, further calibration of other load components is required. The results indicate as well that the accuracy of individual FBG sensors is met by strain gauges, only if applied in full Wheatstone bridges. Additionally, strain gauges show changing sensitivity and increasing non-linearity with increasing excitation frequencies, whereas FBG sensors appear unaffected. The immunity to electrical noise, the linear response and the sensor size make the FBG sensor a very promising measurement technique, which may be applied in many research areas. Further research to application and connection methods for FBG sensors may yield even higher accuracies and a means for quick application and testing.

Mechanical, Maritime and Materials Engineering

Marine and Transport Technology

Ship Hydromechanics and Structures

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor), Den Besten, J.H. (mentor), L.M.%22%29&pagesize-30">Van Woerkom, P.T.L.M. (mentor), Klein Breteler, R.F. (mentor).

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Van der Laag, D. A. M. (. (2016). Design and Calibration of a Multi-Axial Load Cell for Quasi-Static and Dynamic Testing. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:d460e61d-4d29-4f30-8a90-86a104dc81ad

Chicago Manual of Style (16^th Edition):

Van der Laag, D A M (author). “Design and Calibration of a Multi-Axial Load Cell for Quasi-Static and Dynamic Testing.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:d460e61d-4d29-4f30-8a90-86a104dc81ad.

MLA Handbook (7^th Edition):

Van der Laag, D A M (author). “Design and Calibration of a Multi-Axial Load Cell for Quasi-Static and Dynamic Testing.” 2016. Web. 06 Mar 2021.

Vancouver:

Van der Laag DAM(. Design and Calibration of a Multi-Axial Load Cell for Quasi-Static and Dynamic Testing. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:d460e61d-4d29-4f30-8a90-86a104dc81ad.

Council of Science Editors:

Van der Laag DAM(. Design and Calibration of a Multi-Axial Load Cell for Quasi-Static and Dynamic Testing. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:d460e61d-4d29-4f30-8a90-86a104dc81ad

Delft University of Technology

14. Huiskamp, E. (author). Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting.

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:1b1ef797-5566-489c-b388-9a5b5c7f7127

►

Only abstract available due to confidentiality

Mechanical, Maritime and Materials Engineering

Maritime and Transport Technology

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor), Stapersma,… (more)

Subjects/Keywords: frame tilt; wing bulkhead; finite element method; plastic hinge; plasticity; tank pressure; monotonic loading; structural analysis; cyclic loading; ratcheting; submarine; pressure hull

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Huiskamp, E. (. (2016). Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:1b1ef797-5566-489c-b388-9a5b5c7f7127

Chicago Manual of Style (16^th Edition):

Huiskamp, E (author). “Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting.” 2016. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:1b1ef797-5566-489c-b388-9a5b5c7f7127.

MLA Handbook (7^th Edition):

Huiskamp, E (author). “Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting.” 2016. Web. 06 Mar 2021.

Vancouver:

Huiskamp E(. Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:1b1ef797-5566-489c-b388-9a5b5c7f7127.

Council of Science Editors:

Huiskamp E(. Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:1b1ef797-5566-489c-b388-9a5b5c7f7127

15. Gupta, A.G. (author). Experimental investigation of effects of residual stresses on fatigue crack growth in pipelines with allowance for the scale effects.

Degree: 2014, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:53cc9816-cc50-445d-bf21-ac5c4f1b57a7

►

In offshore industry, subsea pipelines are used for transporting oil and gas from wells to remote platforms and from platforms to nearby shores. A microscopic… (more)

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In offshore industry, subsea pipelines are used for transporting oil and gas from wells to remote platforms and from platforms to nearby shores. A microscopic flaw in pipeline during installation and operation will grow normal to the principal stress if the threshold value of fatigue stress range is exceeded. In case, these microscopic flaws gradually grow into critical crack size, the pipe material will fail by fracture. Offshore oil/gas pipelines are typically constructed by joining steel pipes by welding. Residual stresses are generated in the vicinity of weld seam during welding process, which if tensile, can be detrimental to fatigue strength of the pipes. Four point bend full scale fatigue tests are carried out on notched pipes to investigate the effects of these residual stresses on fatigue crack growth. A four point bend test-rig is designed and constructed to carry out these tests. During analysis it is observed that the results for pipe specimens with residual stresses are comparable to pipe specimens without residual stresses. It might be due to phenomenon like plastic deformation taking place at the crack tip during the fatigue loading. Another gain of this thesis study is to investigate the scale effects on the fatigue crack growth. Scale effects include the effects of change of specimen geometry and size on fatigue crack growth. Codes (BS7910) allow the use of fatigue data of strip specimens with through thickness crack to relate to full scale pipe specimens with surface cracks. It is argued that residual stresses initially present in pipe are relieved when the strip specimen is cut from pipe. To investigate the difference, three point bend fatigue tests are carried out on notched strip specimens extracted from the pipes. On analysis of the results of full scale pipe tests and strip specimens, it is found that fatigue crack growth rates are comparable for both cases.

Offshore and Dredging Engineering

Marine & Transport Technology

Mechanical, Maritime and Materials Engineering

Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L. (mentor), Romeijn, A. (mentor).

Subjects/Keywords: fatigue; residual stress; crack growth rate

10 more images…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gupta, A. G. (. (2014). Experimental investigation of effects of residual stresses on fatigue crack growth in pipelines with allowance for the scale effects. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:53cc9816-cc50-445d-bf21-ac5c4f1b57a7

Chicago Manual of Style (16^th Edition):

Gupta, A G (author). “Experimental investigation of effects of residual stresses on fatigue crack growth in pipelines with allowance for the scale effects.” 2014. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:53cc9816-cc50-445d-bf21-ac5c4f1b57a7.

MLA Handbook (7^th Edition):

Gupta, A G (author). “Experimental investigation of effects of residual stresses on fatigue crack growth in pipelines with allowance for the scale effects.” 2014. Web. 06 Mar 2021.

Vancouver:

Gupta AG(. Experimental investigation of effects of residual stresses on fatigue crack growth in pipelines with allowance for the scale effects. [Internet] [Masters thesis]. Delft University of Technology; 2014. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:53cc9816-cc50-445d-bf21-ac5c4f1b57a7.

Council of Science Editors:

Gupta AG(. Experimental investigation of effects of residual stresses on fatigue crack growth in pipelines with allowance for the scale effects. [Masters Thesis]. Delft University of Technology; 2014. Available from: http://resolver.tudelft.nl/uuid:53cc9816-cc50-445d-bf21-ac5c4f1b57a7

Delft University of Technology

16. Den Besten, J.H. Fatigue resistance of welded joints in aluminium high-speed craft: A total stress concept.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4

► Crew transfers, surveillance duties and {security, rescue, interception} operations at sea typically require high-speed craft. Aluminium is quite often selected as hull structure material because… (more)

▼ Crew transfers, surveillance duties and {security, rescue, interception} operations at sea typically require high-speed craft. Aluminium is quite often selected as hull structure material because of its weight save potential in comparison to steel. The fatigue strength, however, may become a point of concern because of the decreased Young’s modulus. Bottom slamming is identified as a dominant type of repeated loading, meaning fatigue is a governing limit state in aluminium high-speed craft design. Particular attention in that respect is paid to arc-welded joints connecting the hull structure components, {plates, shells}, since the weld geometry introduces notches; fatigue sensitive locations. Fatigue physics cover an extensive range of scales and modelling may require a multi-scale approach. Adopting a structural response parameter S available at FSS level using global information only, however, seems attractive since S controls plasticity – required to facilitate fatigue damage: crack initiation, growth, propagation and fracture – at macro (structural)- as well as meso and micro (material) scale, but pays off in fatigue resistance data scatter and life time estimate uncertainty. Including physics at smaller scale, local information, improves the accuracy. A continuous increase of the considered scale range of physics as observed in fatigue assessment concepts developed over time – proposed to be classified according to approach, criterion, parameter and process zone – is however typically associated to increased (computational) effort and concept complexity. At the same time, similarity; proper scaling, meaning equal parameter values should yield the same fatigue resistance, seems still incomplete since all concepts available involve multiple fatigue resistance curves rather than one. From {MCF, HCF} design perspective, a local continuum mechanics approach seems sufficient and a total stress concept is proposed to balance accuracy, effort and complexity, improving similarity at the same time to obtain one aluminium arc-welded joint fatigue resistance curve. The weld geometry introduces at least a notch at the weld toe and depending on penetration level another one at the weld root. Cracks may initiate at both fatigue sensitive locations, grow principally in {plate, shell} thickness direction and continue to propagate in general either along or perpendicular to the weld seam through {plate, shell} because of the structure orthotropic stiffness characteristics, suggesting a {plate, shell} thickness based (detectable repair) criterion to be an appropriate fatigue design parameter. The total through-thickness weld notch stress distribution along the expected crack path {??_n?^T,??_nr?^T }, including both the ocean/sea waves induced cyclic remote mechanical loading- and welding process related quasi-constant thermal residual part, is assumed to be a key element. The predominant remote mechanical loading mode-I contribution {?_n,?_nr } has been examined to distinguish the involved stress components. A self-equilibrating… Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L., M.%22%29&pagesize-30">Huijsmans, R.H.M..

Subjects/Keywords: high-speed craft; aluminium; fatigue; welded joint; total stress concept

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APA (6^th Edition):

Den Besten, J. H. (2015). Fatigue resistance of welded joints in aluminium high-speed craft: A total stress concept. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4

Chicago Manual of Style (16^th Edition):

Den Besten, J H. “Fatigue resistance of welded joints in aluminium high-speed craft: A total stress concept.” 2015. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4.

MLA Handbook (7^th Edition):

Den Besten, J H. “Fatigue resistance of welded joints in aluminium high-speed craft: A total stress concept.” 2015. Web. 06 Mar 2021.

Vancouver:

Den Besten JH. Fatigue resistance of welded joints in aluminium high-speed craft: A total stress concept. [Internet] [Doctoral dissertation]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4.

Council of Science Editors:

Den Besten JH. Fatigue resistance of welded joints in aluminium high-speed craft: A total stress concept. [Doctoral Dissertation]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; urn:NBN:nl:ui:24-uuid:370b3d44-f4a6-403e-9629-d36174c3aca4 ; http://resolver.tudelft.nl/uuid:370b3d44-f4a6-403e-9629-d36174c3aca4

Delft University of Technology

17. Welschen, Y. (author). Suction bucket buckling: Buckling behaviour of suction buckets during installation in layered soils.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:4bc461e6-3e90-4928-9a12-4dcebfbddb1c

Offshore engineering

Mechanical, Maritime and Materials Engineering

Advisors/Committee Members: Kaminski, M.L. (mentor).

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Welschen, Y. (. (2015). Suction bucket buckling: Buckling behaviour of suction buckets during installation in layered soils. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:4bc461e6-3e90-4928-9a12-4dcebfbddb1c

Chicago Manual of Style (16^th Edition):

Welschen, Y (author). “Suction bucket buckling: Buckling behaviour of suction buckets during installation in layered soils.” 2015. Masters Thesis, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:4bc461e6-3e90-4928-9a12-4dcebfbddb1c.

MLA Handbook (7^th Edition):

Welschen, Y (author). “Suction bucket buckling: Buckling behaviour of suction buckets during installation in layered soils.” 2015. Web. 06 Mar 2021.

Vancouver:

Welschen Y(. Suction bucket buckling: Buckling behaviour of suction buckets during installation in layered soils. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:4bc461e6-3e90-4928-9a12-4dcebfbddb1c.

Council of Science Editors:

Welschen Y(. Suction bucket buckling: Buckling behaviour of suction buckets during installation in layered soils. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:4bc461e6-3e90-4928-9a12-4dcebfbddb1c

Delft University of Technology

18. Zou, T. Effect of global climate change projections on fatigue lifetime of permanently moored floating offshore structures.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 10.4233/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:isbn:978-94-9301-431-2 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34

► The design of floating offshore structures requires long-term wave data to estimate their fatigue lifetimes, because waves loadings are considered as the main source of… (more)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zou, T. (2018). Effect of global climate change projections on fatigue lifetime of permanently moored floating offshore structures. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 10.4233/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:isbn:978-94-9301-431-2 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34

Chicago Manual of Style (16^th Edition):

Zou, T. “Effect of global climate change projections on fatigue lifetime of permanently moored floating offshore structures.” 2018. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 10.4233/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:isbn:978-94-9301-431-2 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34.

MLA Handbook (7^th Edition):

Zou, T. “Effect of global climate change projections on fatigue lifetime of permanently moored floating offshore structures.” 2018. Web. 06 Mar 2021.

Vancouver:

Zou T. Effect of global climate change projections on fatigue lifetime of permanently moored floating offshore structures. [Internet] [Doctoral dissertation]. Delft University of Technology; 2018. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 10.4233/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:isbn:978-94-9301-431-2 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34.

Council of Science Editors:

Zou T. Effect of global climate change projections on fatigue lifetime of permanently moored floating offshore structures. [Doctoral Dissertation]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; 10.4233/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; urn:isbn:978-94-9301-431-2 ; urn:NBN:nl:ui:24-uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34 ; http://resolver.tudelft.nl/uuid:5da2a711-c5ef-4d0f-8f0d-6fd109ec1d34

Delft University of Technology

19. van der Horst, M.P. On self magnetic flux leakage in support of fatigue crack monitoring in ship and offshore structures: A numerical, experimental, and full-scale application study.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; 93d317bf-05b7-45cb-b616-28a076506d45 ; 10.4233/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:isbn:978-94-92679-49-9 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45

► Ship and offshore structures are prone to fatigue damage as they are cyclically loaded by waves. Therefore, regular inspection is needed in order to confirm… (more)

Subjects/Keywords: Fatigue; crack monitoring; ship and offshore structures; Self Magnetic Flux Leakage; metal magnetic memory method

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

van der Horst, M. P. (2018). On self magnetic flux leakage in support of fatigue crack monitoring in ship and offshore structures: A numerical, experimental, and full-scale application study. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; 93d317bf-05b7-45cb-b616-28a076506d45 ; 10.4233/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:isbn:978-94-92679-49-9 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45

Chicago Manual of Style (16^th Edition):

van der Horst, M P. “On self magnetic flux leakage in support of fatigue crack monitoring in ship and offshore structures: A numerical, experimental, and full-scale application study.” 2018. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; 93d317bf-05b7-45cb-b616-28a076506d45 ; 10.4233/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:isbn:978-94-92679-49-9 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45.

MLA Handbook (7^th Edition):

van der Horst, M P. “On self magnetic flux leakage in support of fatigue crack monitoring in ship and offshore structures: A numerical, experimental, and full-scale application study.” 2018. Web. 06 Mar 2021.

Vancouver:

van der Horst MP. On self magnetic flux leakage in support of fatigue crack monitoring in ship and offshore structures: A numerical, experimental, and full-scale application study. [Internet] [Doctoral dissertation]. Delft University of Technology; 2018. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; 93d317bf-05b7-45cb-b616-28a076506d45 ; 10.4233/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:isbn:978-94-92679-49-9 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45.

Council of Science Editors:

van der Horst MP. On self magnetic flux leakage in support of fatigue crack monitoring in ship and offshore structures: A numerical, experimental, and full-scale application study. [Doctoral Dissertation]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; 93d317bf-05b7-45cb-b616-28a076506d45 ; 10.4233/uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; urn:isbn:978-94-92679-49-9 ; urn:NBN:nl:ui:24-uuid:93d317bf-05b7-45cb-b616-28a076506d45 ; http://resolver.tudelft.nl/uuid:93d317bf-05b7-45cb-b616-28a076506d45

Delft University of Technology

20. van Lieshout, P.S. On the assessment of multiaxial fatigue resistance of welded steel joints in marine structures when exposed to non-proportional constant amplitude loading.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; afd39f40-7569-4cc6-ac1a-659342b45f9a ; 10.4233/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a

► Structural geometry and stochastic loads such as swell and wind seas can typically induce multiaxial stress states in welded details of marine structures. It is… (more)

Subjects/Keywords: marine structures; multiaxial fatigue; steel; welded joints; non-proportional; constant amplitude loading

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

van Lieshout, P. S. (2020). On the assessment of multiaxial fatigue resistance of welded steel joints in marine structures when exposed to non-proportional constant amplitude loading. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; afd39f40-7569-4cc6-ac1a-659342b45f9a ; 10.4233/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a

Chicago Manual of Style (16^th Edition):

van Lieshout, P S. “On the assessment of multiaxial fatigue resistance of welded steel joints in marine structures when exposed to non-proportional constant amplitude loading.” 2020. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; afd39f40-7569-4cc6-ac1a-659342b45f9a ; 10.4233/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a.

MLA Handbook (7^th Edition):

van Lieshout, P S. “On the assessment of multiaxial fatigue resistance of welded steel joints in marine structures when exposed to non-proportional constant amplitude loading.” 2020. Web. 06 Mar 2021.

Vancouver:

van Lieshout PS. On the assessment of multiaxial fatigue resistance of welded steel joints in marine structures when exposed to non-proportional constant amplitude loading. [Internet] [Doctoral dissertation]. Delft University of Technology; 2020. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; afd39f40-7569-4cc6-ac1a-659342b45f9a ; 10.4233/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a.

Council of Science Editors:

van Lieshout PS. On the assessment of multiaxial fatigue resistance of welded steel joints in marine structures when exposed to non-proportional constant amplitude loading. [Doctoral Dissertation]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; afd39f40-7569-4cc6-ac1a-659342b45f9a ; 10.4233/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; urn:NBN:nl:ui:24-uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a ; http://resolver.tudelft.nl/uuid:afd39f40-7569-4cc6-ac1a-659342b45f9a

Delft University of Technology

21. Stambaugh, K.A. On Ship Structure Risk and Total Ownership Cost Management Assisted by Prognostic Hull Structure Monitoring.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; 3609236e-ec53-4157-9cdc-e461a9297b71 ; 10.4233/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71

► Ships must perform their missions with a high degree of reliability to maximize availability through their service life. The ultimate safety of the hull structure… (more)

▼ Ships must perform their missions with a high degree of reliability to maximize availability through their service life. The ultimate safety of the hull structure is time-dependent with degradation caused by the operational environment. Achieving the fore mentioned reliability and mission availability requirements are complicated because ships operate in random seaways producing random loading on the hull structure. The subsequent strength degradation also involves random processes including the material properties themselves. Furthermore, the models used to estimate the loading and responses are not perfect and result in additional randomness and related uncertainty. The potential Risks involved are very high, given the combination of uncertainties and high value of the assets, crews, and related resources. The primary research questions posed by this dissertation include; 1) what approaches are needed to make Risk informed decisions in Ship Structure Life Cycle Management (SSLCM) and, 2) how can Hull Structural Monitoring (HSM) be used effectively to support these decisions? This dissertation addresses these research questions by building on the fundamentals of hull structural loading and failure mechanisms on both component and systems-levels that are unique to ship structure. This fundamental research includes a correlation analysis of the system loading to support new definitions of ship structural system response. This new definition of structural system response provides insights into definitions of serviceability failure, reserve strength, and redundancy. Following the structural systems definition development, this dissertation proposes a Risk and Total Ownership Cost (TOC) trade-space perspective for making informed decisions and managing both Risk and costs associated with SSLCM and fundamental characterization of Risk and uncertainty. The development of Risk-TOC approach provides tangible and relatable benefits for understanding uncertainty in Risk terms required to make informed decisions. The Risk-TOC approach provides a more informed perspective than prior proposals for Decision Theory-based Optimal Inspection approaches with assumptions and parameters that do not fully quantify the uncertainties involved in the SSLCM processes. The Risk-TOC approach also provides a quantitative means for assessing the consequences of different failure modes (i.e., fatigue cracking and corrosion). The Risk-TOC approach provides a quantified basis for comparing Risk and costs given the magnitude of resources at Risk by monetizing uncertainty. In this manner, the Risk - TOC approach provides a framework for fundamental definitions, including monetized uncertainty, analysis of alternatives (AoAs), Return on Investment (RoI), and Value of Information (VoI). The benefits of prognostic HSM are presented in the context of reduction of uncertainty in the SSLCM processes; thereby, reducing Risk and TOC with favorable RoI and VoI. The Risk-TOC approach is verified as demonstrated in example applications involving a US Coast… Advisors/Committee Members: L.%22%29&pagesize-30">Kaminski, M.L., Ayyub, B., L.%22%29&pagesize-30">Walters, C.L., Delft University of Technology.

Subjects/Keywords: Ship Structure; Risk; Total Ownership Cost; Reliability; Fatigue; Corrosion; Hull Structure Monitoring

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Stambaugh, K. A. (2020). On Ship Structure Risk and Total Ownership Cost Management Assisted by Prognostic Hull Structure Monitoring. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; 3609236e-ec53-4157-9cdc-e461a9297b71 ; 10.4233/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71

Chicago Manual of Style (16^th Edition):

Stambaugh, K A. “On Ship Structure Risk and Total Ownership Cost Management Assisted by Prognostic Hull Structure Monitoring.” 2020. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; 3609236e-ec53-4157-9cdc-e461a9297b71 ; 10.4233/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71.

MLA Handbook (7^th Edition):

Stambaugh, K A. “On Ship Structure Risk and Total Ownership Cost Management Assisted by Prognostic Hull Structure Monitoring.” 2020. Web. 06 Mar 2021.

Vancouver:

Stambaugh KA. On Ship Structure Risk and Total Ownership Cost Management Assisted by Prognostic Hull Structure Monitoring. [Internet] [Doctoral dissertation]. Delft University of Technology; 2020. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; 3609236e-ec53-4157-9cdc-e461a9297b71 ; 10.4233/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71.

Council of Science Editors:

Stambaugh KA. On Ship Structure Risk and Total Ownership Cost Management Assisted by Prognostic Hull Structure Monitoring. [Doctoral Dissertation]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; 3609236e-ec53-4157-9cdc-e461a9297b71 ; 10.4233/uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; urn:NBN:nl:ui:24-uuid:3609236e-ec53-4157-9cdc-e461a9297b71 ; http://resolver.tudelft.nl/uuid:3609236e-ec53-4157-9cdc-e461a9297b71

Delft University of Technology

22. Maljaars, P.J. Hydro-elastic analysis of flexible marine propellers.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 10.4233/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:isbn:978-94-6375-233-6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6

► Higher efficiencies, higher cavitation inception speeds and reduced acoustic signature are claimed benefits of flexible composite propellers. Analysing the hydrodynamic performance of these flexible propellers,… (more)

Subjects/Keywords: flexible propellers; composite propellers; hydro-elasticity; fluid-structure interaction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Maljaars, P. J. (2019). Hydro-elastic analysis of flexible marine propellers. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 10.4233/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:isbn:978-94-6375-233-6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6

Chicago Manual of Style (16^th Edition):

Maljaars, P J. “Hydro-elastic analysis of flexible marine propellers.” 2019. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 10.4233/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:isbn:978-94-6375-233-6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6.

MLA Handbook (7^th Edition):

Maljaars, P J. “Hydro-elastic analysis of flexible marine propellers.” 2019. Web. 06 Mar 2021.

Vancouver:

Maljaars PJ. Hydro-elastic analysis of flexible marine propellers. [Internet] [Doctoral dissertation]. Delft University of Technology; 2019. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 10.4233/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:isbn:978-94-6375-233-6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6.

Council of Science Editors:

Maljaars PJ. Hydro-elastic analysis of flexible marine propellers. [Doctoral Dissertation]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; 10.4233/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; urn:isbn:978-94-6375-233-6 ; urn:NBN:nl:ui:24-uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6 ; http://resolver.tudelft.nl/uuid:19c9610b-9a72-42a6-8340-2ba01ec78cc6

Delft University of Technology

23. Karimi, M.R. Experimental modeling of sloshing at small-scale: Relevance at full-scale through analysis of the physics of impacts.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; f1498c73-5caa-4858-904b-7cbbf9c04d9b ; 10.4233/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Karimi, M. R. (2017). Experimental modeling of sloshing at small-scale: Relevance at full-scale through analysis of the physics of impacts. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; f1498c73-5caa-4858-904b-7cbbf9c04d9b ; 10.4233/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b

Chicago Manual of Style (16^th Edition):

Karimi, M R. “Experimental modeling of sloshing at small-scale: Relevance at full-scale through analysis of the physics of impacts.” 2017. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; f1498c73-5caa-4858-904b-7cbbf9c04d9b ; 10.4233/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b.

MLA Handbook (7^th Edition):

Karimi, M R. “Experimental modeling of sloshing at small-scale: Relevance at full-scale through analysis of the physics of impacts.” 2017. Web. 06 Mar 2021.

Vancouver:

Karimi MR. Experimental modeling of sloshing at small-scale: Relevance at full-scale through analysis of the physics of impacts. [Internet] [Doctoral dissertation]. Delft University of Technology; 2017. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; f1498c73-5caa-4858-904b-7cbbf9c04d9b ; 10.4233/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b.

Council of Science Editors:

Karimi MR. Experimental modeling of sloshing at small-scale: Relevance at full-scale through analysis of the physics of impacts. [Doctoral Dissertation]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; f1498c73-5caa-4858-904b-7cbbf9c04d9b ; 10.4233/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; urn:NBN:nl:ui:24-uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b ; http://resolver.tudelft.nl/uuid:f1498c73-5caa-4858-904b-7cbbf9c04d9b

Delft University of Technology

24. Bogaert, H. An experimental investigation of sloshing impact physics in membrane LNG tanks on floating structures.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 10.4233/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:isbn:978-94-6332-434-2 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bogaert, H. (2018). An experimental investigation of sloshing impact physics in membrane LNG tanks on floating structures. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 10.4233/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:isbn:978-94-6332-434-2 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568

Chicago Manual of Style (16^th Edition):

Bogaert, H. “An experimental investigation of sloshing impact physics in membrane LNG tanks on floating structures.” 2018. Doctoral Dissertation, Delft University of Technology. Accessed March 06, 2021. http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 10.4233/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:isbn:978-94-6332-434-2 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568.

MLA Handbook (7^th Edition):

Bogaert, H. “An experimental investigation of sloshing impact physics in membrane LNG tanks on floating structures.” 2018. Web. 06 Mar 2021.

Vancouver:

Bogaert H. An experimental investigation of sloshing impact physics in membrane LNG tanks on floating structures. [Internet] [Doctoral dissertation]. Delft University of Technology; 2018. [cited 2021 Mar 06]. Available from: http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 10.4233/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:isbn:978-94-6332-434-2 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568.

Council of Science Editors:

Bogaert H. An experimental investigation of sloshing impact physics in membrane LNG tanks on floating structures. [Doctoral Dissertation]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; 10.4233/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; urn:isbn:978-94-6332-434-2 ; urn:NBN:nl:ui:24-uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568 ; http://resolver.tudelft.nl/uuid:96870b88-e07b-4ec2-8bd4-ef2cd3713568

Open Access Theses and Dissertations