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You searched for subject:(UMAT subroutine plasticity). Showing records 1 – 2 of 2 total matches.

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1. Susila, Gede Adi. Experimental and Numerical Studies of Masonry Wall Panels and Timber Frames of Low-rise Structures under Seismic Loadings in Indonesia.

Degree: 2014, University of Manchester

Indonesia is a developing country that suffers from earthquakes and windstorms and where at least 60% of houses are non-engineered structures, built by unskilled workers using masonry and timber. The non-engineered housing units developed in urban region are also vulnerable to seismic hazard due to the use of low quality of material and constructions method. Those structures are not resistant to extreme lateral loads or ground movement and their failure during an earthquake or storm can lead to significant loss of life.This thesis is concerned with the structural performance of Indonesian low-rise buildings made of masonry and timber under lateral seismic load. The research presented includes a survey of forms of building structure and experimental, analytical and numerical work to predict the behaviour of masonry wall and traditional timber frame buildings. Experimental testing of both masonry and timber have been carried out in Indonesia to establish the quality of materials and to provide material properties for numerical simulations. The experimental study found that the strength of Indonesia-Bali clay brick masonry are below the minimum standard required for masonry structures built in seismic regions, being at least 50% lower than the requirement specified in British Standard and Eurocode-6 (BS EN 1996-1-1:2005). In contrast, Indonesian timber materials meet the strength classes specified in British Standard/Eurocode- 5 (BS EN 338:2009) in the range of strength grade D35-40 and C35).Structural tests under monotonic and cyclic loading have been conducted on building components in Indonesia, to determine the load-displacement capacity of local hand-made masonry wall panels and timber frames in order to: (1) evaluate the performance of masonry and timber frame structure, (2) investigate the dynamic behaviour of both structures, (3) observe the effect of in-plane stiffness and ductility level, and (4) examine the anchoring joint at the base of timber frame that resists the overturning moment. From these tests, the structural ductility was found to be less than two which is below the requirement of the relevant guidelines from the Federal Emergency Management Agency, USA (FEMA-306). It was also observed that the lateral stiffness of masonry wall is much higher than the equivalent timber frame of the same height and length. The experimental value of stiffness of the masonry wall panel was found to be one-twelfth of the recommended values given in FEMA-356 and the Canadian Building code. The masonry wall provides relatively low displacement compared to the large displacement of the timber frame at the full capacity level of lateral load, with structural framing members of the latter remaining intact. The weak point of the timber frame is the mechanical joint and the capacity of slip joint governs the lateral load capacity of the whole frame.Detailed numerical models of the experimental specimens were setup in Abaqus using three-dimensional solid elements. Cohesive elements were used to simulate the mortar behaviour,… Advisors/Committee Members: SWAILES, TOM T, Mandal, Parthasarathi, Swailes, Tom.

Subjects/Keywords: Structural Integrity (stiffness; strength; ductility); non-engineered structure: masonry and timber; dynamic response of structure; modification factor (R); ductility factor (q); base isolation system; monotonic and cyclic loading; monotonic and cyclic loading; Abaqus; UMAT-subroutine plasticity; XFEM; Crystal Plasticity; Drucker-Prager; Cohesive element damage model; fragility study: drift-base; pushover and time-history analysis; Tohoku 2011 earthquake; Sumatra 2004 earthquake; El-Centro earthquake; guideline for masonry and timber; PGA (0.1g; 0.25g; 1.0g)

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

APA (6th Edition):

Susila, G. A. (2014). Experimental and Numerical Studies of Masonry Wall Panels and Timber Frames of Low-rise Structures under Seismic Loadings in Indonesia. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:242741

Chicago Manual of Style (16th Edition):

Susila, Gede Adi. “Experimental and Numerical Studies of Masonry Wall Panels and Timber Frames of Low-rise Structures under Seismic Loadings in Indonesia.” 2014. Doctoral Dissertation, University of Manchester. Accessed January 22, 2020. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:242741.

MLA Handbook (7th Edition):

Susila, Gede Adi. “Experimental and Numerical Studies of Masonry Wall Panels and Timber Frames of Low-rise Structures under Seismic Loadings in Indonesia.” 2014. Web. 22 Jan 2020.

Vancouver:

Susila GA. Experimental and Numerical Studies of Masonry Wall Panels and Timber Frames of Low-rise Structures under Seismic Loadings in Indonesia. [Internet] [Doctoral dissertation]. University of Manchester; 2014. [cited 2020 Jan 22]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:242741.

Council of Science Editors:

Susila GA. Experimental and Numerical Studies of Masonry Wall Panels and Timber Frames of Low-rise Structures under Seismic Loadings in Indonesia. [Doctoral Dissertation]. University of Manchester; 2014. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:242741


University of Manchester

2. Susila, Gede Adi. Experimental and numerical studies of masonry wall panels and timber frames of low-rise structures under seismic loadings in Indonesia.

Degree: PhD, 2014, University of Manchester

Indonesia is a developing country that suffers from earthquakes and windstorms and where at least 60% of houses are non-engineered structures, built by unskilled workers using masonry and timber. The non-engineered housing units developed in urban region are also vulnerable to seismic hazard due to the use of low quality of material and constructions method. Those structures are not resistant to extreme lateral loads or ground movement and their failure during an earthquake or storm can lead to significant loss of life. This thesis is concerned with the structural performance of Indonesian low-rise buildings made of masonry and timber under lateral seismic load. The research presented includes a survey of forms of building structure and experimental, analytical and numerical work to predict the behaviour of masonry wall and traditional timber frame buildings. Experimental testing of both masonry and timber have been carried out in Indonesia to establish the quality of materials and to provide material properties for numerical simulations. The experimental study found that the strength of Indonesia-Bali clay brick masonry are below the minimum standard required for masonry structures built in seismic regions, being at least 50% lower than the requirement specified in British Standard and Eurocode-6 (BS EN 1996-1-1:2005). In contrast, Indonesian timber materials meet the strength classes specified in British Standard/Eurocode- 5 (BS EN 338:2009) in the range of strength grade D35-40 and C35).Structural tests under monotonic and cyclic loading have been conducted on building components in Indonesia, to determine the load-displacement capacity of local hand-made masonry wall panels and timber frames in order to: (1) evaluate the performance of masonry and timber frame structure, (2) investigate the dynamic behaviour of both structures, (3) observe the effect of in-plane stiffness and ductility level, and (4) examine the anchoring joint at the base of timber frame that resists the overturning moment. From these tests, the structural ductility was found to be less than two which is below the requirement of the relevant guidelines from the Federal Emergency Management Agency, USA (FEMA-306). It was also observed that the lateral stiffness of masonry wall is much higher than the equivalent timber frame of the same height and length. The experimental value of stiffness of the masonry wall panel was found to be one-twelfth of the recommended values given in FEMA-356 and the Canadian Building code. The masonry wall provides relatively low displacement compared to the large displacement of the timber frame at the full capacity level of lateral load, with structural framing members of the latter remaining intact. The weak point of the timber frame is the mechanical joint and the capacity of slip joint governs the lateral load capacity of the whole frame. Detailed numerical models of the experimental specimens were setup in Abaqus using three-dimensional solid elements. Cohesive elements were used to simulate the mortar behaviour,…

Subjects/Keywords: 624.1; Structural Integrity (stiffness, strength, ductility), non-engineered structure: masonry and timber, dynamic response of structure, modification factor (R), ductility factor (q), base isolation system, monotonic and cyclic loading, monotonic and cyclic loading, Abaqus, UMAT-subroutine plasticity, XFEM, Crystal Plasticity, Drucker-Prager, Cohesive element damage model, fragility study: drift-base, pushover and time-history analysis, Tohoku 2011 earthquake, Sumatra 2004 earthquake, El-Centro earthquake, guideline for masonry and timber, PGA (0.1g, 0.25g, 1.0g)

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Susila, G. A. (2014). Experimental and numerical studies of masonry wall panels and timber frames of low-rise structures under seismic loadings in Indonesia. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/experimental-and-numerical-studies-of-masonry-wall-panels-and-timber-frames-of-lowrise-structures-under-seismic-loadings-in-indonesia(3ceb094b-4e6e-432a-b3de-3d4c306b0551).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634842

Chicago Manual of Style (16th Edition):

Susila, Gede Adi. “Experimental and numerical studies of masonry wall panels and timber frames of low-rise structures under seismic loadings in Indonesia.” 2014. Doctoral Dissertation, University of Manchester. Accessed January 22, 2020. https://www.research.manchester.ac.uk/portal/en/theses/experimental-and-numerical-studies-of-masonry-wall-panels-and-timber-frames-of-lowrise-structures-under-seismic-loadings-in-indonesia(3ceb094b-4e6e-432a-b3de-3d4c306b0551).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634842.

MLA Handbook (7th Edition):

Susila, Gede Adi. “Experimental and numerical studies of masonry wall panels and timber frames of low-rise structures under seismic loadings in Indonesia.” 2014. Web. 22 Jan 2020.

Vancouver:

Susila GA. Experimental and numerical studies of masonry wall panels and timber frames of low-rise structures under seismic loadings in Indonesia. [Internet] [Doctoral dissertation]. University of Manchester; 2014. [cited 2020 Jan 22]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/experimental-and-numerical-studies-of-masonry-wall-panels-and-timber-frames-of-lowrise-structures-under-seismic-loadings-in-indonesia(3ceb094b-4e6e-432a-b3de-3d4c306b0551).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634842.

Council of Science Editors:

Susila GA. Experimental and numerical studies of masonry wall panels and timber frames of low-rise structures under seismic loadings in Indonesia. [Doctoral Dissertation]. University of Manchester; 2014. Available from: https://www.research.manchester.ac.uk/portal/en/theses/experimental-and-numerical-studies-of-masonry-wall-panels-and-timber-frames-of-lowrise-structures-under-seismic-loadings-in-indonesia(3ceb094b-4e6e-432a-b3de-3d4c306b0551).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634842

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