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You searched for +publisher:"University of Colorado" +contributor:("Mettupalayam V. Sivaselvan"). Showing records 1 – 3 of 3 total matches.

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University of Colorado

1. Capdevielle, Sophie. Modeling Fluid-Rigid Body Interaction Using the Arbitrary Lagrangian Eulerian Method.

Degree: MS, 2011, University of Colorado

The goal of this thesis is to build a clear understanding of the Arbitrary Lagrangian Eulerian (ALE) method and to develop a useful simple implementation. A review of the ALE method is presented with precise notations and detailed explanation of the combined kinematics. As an application, a complete model of fluid-rigid body interaction is developed. Starting from the Navier-Stokes equations, ALE governing equations for the fluid are derived. They are discretized in space using the Finite Element method. Coupled with the rigid body equation of motion via compatibility and equilibrium interface conditions, they lead to a nonlinear system of equations. The latter is solved using an approximated Newton's method. Details on the implementation are given to illustrate the numerical solution procedure. In particular, the prescription of the mesh motion, specific to the ALE method, is developed. The simple pure fluid problem of the Couette flow is used to test the implementation. The formulation is then used to simulate the free oscillations of a rigid circular cylinder embedded in a viscous fluid. Advisors/Committee Members: Mettupalayam V. Sivaselvan, Harihar Rajaram, Richard A. Regueiro.

Subjects/Keywords: ale method; finite elements; fluid-structure interaction; galerkin formulation; Civil Engineering

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

APA (6th Edition):

Capdevielle, S. (2011). Modeling Fluid-Rigid Body Interaction Using the Arbitrary Lagrangian Eulerian Method. (Masters Thesis). University of Colorado. Retrieved from https://scholar.colorado.edu/cven_gradetds/240

Chicago Manual of Style (16th Edition):

Capdevielle, Sophie. “Modeling Fluid-Rigid Body Interaction Using the Arbitrary Lagrangian Eulerian Method.” 2011. Masters Thesis, University of Colorado. Accessed May 08, 2021. https://scholar.colorado.edu/cven_gradetds/240.

MLA Handbook (7th Edition):

Capdevielle, Sophie. “Modeling Fluid-Rigid Body Interaction Using the Arbitrary Lagrangian Eulerian Method.” 2011. Web. 08 May 2021.

Vancouver:

Capdevielle S. Modeling Fluid-Rigid Body Interaction Using the Arbitrary Lagrangian Eulerian Method. [Internet] [Masters thesis]. University of Colorado; 2011. [cited 2021 May 08]. Available from: https://scholar.colorado.edu/cven_gradetds/240.

Council of Science Editors:

Capdevielle S. Modeling Fluid-Rigid Body Interaction Using the Arbitrary Lagrangian Eulerian Method. [Masters Thesis]. University of Colorado; 2011. Available from: https://scholar.colorado.edu/cven_gradetds/240


University of Colorado

2. Faris, Jerod B. Software for Determining the Capacity of Bolt Groups Under Eccentric Loads.

Degree: MS, 2012, University of Colorado

In steel construction, it is not uncommon to encounter a bolted connection that supports an eccentric load. Determining the capacity of the bolted connection is dependent on the location and attitude of the applied eccentric load. There have been numerous proposed design methods for determining this capacity. These include the elastic method, the modified elastic method, the plastic method and the instantaneous center method. The instantaneous center method is the preferred method in the current AISC Steel Construction Manual (13th Edition) to design a bolt group under eccentric loads. This method, however, is complicated for design engineers since it requires an iterative analysis. Design engineers are then left with the option of laying out the bolt group to match one of the pre-populated design tables or performing a simplified and conservative elastic analysis. Neither option is particular appealing given that it is not always possible to match the design tables and design engineers are expected to provide competitive and efficient designs. The software developed in this thesis allows design engineers to quickly obtain the capacity of any bolt group using the instantaneous center method. This removes the limitations on design engineers and allows them to provide the best possible connections. The software also provides the capacity of a given bolt group using both the elastic and plastic method, in order to not limit design engineers to one particular method. While the instantaneous center method is preferred, by providing the results for all methods, the design engineer is given complete freedom to use the software in a way that works best for them. Advisors/Committee Members: George Hearn, Abbie B. Liel, Mettupalayam V. Sivaselvan.

Subjects/Keywords: bolt groups; eccentric; software; Civil Engineering

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

APA (6th Edition):

Faris, J. B. (2012). Software for Determining the Capacity of Bolt Groups Under Eccentric Loads. (Masters Thesis). University of Colorado. Retrieved from https://scholar.colorado.edu/cven_gradetds/315

Chicago Manual of Style (16th Edition):

Faris, Jerod B. “Software for Determining the Capacity of Bolt Groups Under Eccentric Loads.” 2012. Masters Thesis, University of Colorado. Accessed May 08, 2021. https://scholar.colorado.edu/cven_gradetds/315.

MLA Handbook (7th Edition):

Faris, Jerod B. “Software for Determining the Capacity of Bolt Groups Under Eccentric Loads.” 2012. Web. 08 May 2021.

Vancouver:

Faris JB. Software for Determining the Capacity of Bolt Groups Under Eccentric Loads. [Internet] [Masters thesis]. University of Colorado; 2012. [cited 2021 May 08]. Available from: https://scholar.colorado.edu/cven_gradetds/315.

Council of Science Editors:

Faris JB. Software for Determining the Capacity of Bolt Groups Under Eccentric Loads. [Masters Thesis]. University of Colorado; 2012. Available from: https://scholar.colorado.edu/cven_gradetds/315


University of Colorado

3. Na, Okpin. Parallel Computational Modeling and Experimental Studies on Durability of Cementitious Materials and Structures.

Degree: PhD, 2011, University of Colorado

In order to predict long-term performance of reinforced concrete structures, a clear understanding of deterioration mechanism in portland cement concrete is a crucial issue. There are several deterioration mechanisms, and chloride-induced corrosion of reinforcement is an important one. The transport rates of chloride and other ions from deicing salts determine the time at which the corrosion of reinforcement starts, which is an important parameter for evaluating the durability of the structure. The main objective of this thesis is to develop a generalized framework based on parallel computing technique to analyze the durability performance of reinforced concrete structures with an emphasis on the coupled transport processes of chloride and other species from deicing salts in non-saturated concrete under ambient temperature. The generalized framework for the coupled transport processes is based on a modified Nernst-Planck equation, which includes the coupling effects of both moisture transfer and thermal conduction in concrete. For the parallel implementation, an overlapping addictive Schwarz method as preconditioner is used. In order to predict numerically the transport processes in a large-scale structure with a realistic boundary condition, various chloride concentrations and environmental humidity models. The prediction by the theoretical models and parallel algorithm agree quite well with available experimental data. In addition to the theoretical and numerical studies, experimental studies are conducted to investigate and improve various properties of sustainable cementitious materials made of rubber particles from waste tires, including compressive strength, bond strength, chloride permeability resistance, drying shrinkage, and freeze-thaw resistance. Advisors/Committee Members: Yunping Xi, Xial Chuan Cai, Mettupalayam V. Sivaselvan, Franck Vernerey, Richard A. Regueiro.

Subjects/Keywords: chloride diffusion; chloride induced corrosion; domain decomposition method; durability of concrete; finite element method; parallel computiation; Civil Engineering

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

APA (6th Edition):

Na, O. (2011). Parallel Computational Modeling and Experimental Studies on Durability of Cementitious Materials and Structures. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/cven_gradetds/218

Chicago Manual of Style (16th Edition):

Na, Okpin. “Parallel Computational Modeling and Experimental Studies on Durability of Cementitious Materials and Structures.” 2011. Doctoral Dissertation, University of Colorado. Accessed May 08, 2021. https://scholar.colorado.edu/cven_gradetds/218.

MLA Handbook (7th Edition):

Na, Okpin. “Parallel Computational Modeling and Experimental Studies on Durability of Cementitious Materials and Structures.” 2011. Web. 08 May 2021.

Vancouver:

Na O. Parallel Computational Modeling and Experimental Studies on Durability of Cementitious Materials and Structures. [Internet] [Doctoral dissertation]. University of Colorado; 2011. [cited 2021 May 08]. Available from: https://scholar.colorado.edu/cven_gradetds/218.

Council of Science Editors:

Na O. Parallel Computational Modeling and Experimental Studies on Durability of Cementitious Materials and Structures. [Doctoral Dissertation]. University of Colorado; 2011. Available from: https://scholar.colorado.edu/cven_gradetds/218

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