Modelling of welding with various constitutive models for steel

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dc.contributor.advisorRonda, Jaceken_ZA
dc.contributor.authorOliver, Graeme Johnen_ZA
dc.date.accessioned2016-03-04T16:34:21Z
dc.date.available2016-03-04T16:34:21Z
dc.date.issued1994en_ZA
dc.descriptionBibliography: pages 102-106.en_ZA
dc.description.abstractThis dissertation is an attempt at the quality analysis of constitutive modelling of welding as a coupled thermo-mechanical or thermo-mechanical-metallurgical problem. Three types of inelastic theories of continua: unified viscoplasticity based on dislocation density theory, unified viscoplasticity based on potential theory, and transformation induced plasticity have been chosen for quantitative investigation. Material models proposed by Anand, Estrin and Mecking, Estrin, Robinson, and Leblond et.al. have been implemented into the finite element program ABAQUS. Specific subroutines have been written specifically for each constitutive equation. The material model implementation is based on the implicit solution of stress-strain relations and the derivation of associated constitutive tangent moduli necessary for the Nonlinear Finite Element solution procedures. Material model comparisons are based on numerical results obtained for the welding of thick plates; that is the bench mark problem considered in this thesis.en_ZA
dc.identifier.apacitationOliver, G. J. (1994). <i>Modelling of welding with various constitutive models for steel</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/17443en_ZA
dc.identifier.chicagocitationOliver, Graeme John. <i>"Modelling of welding with various constitutive models for steel."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 1994. http://hdl.handle.net/11427/17443en_ZA
dc.identifier.citationOliver, G. 1994. Modelling of welding with various constitutive models for steel. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Oliver, Graeme John AB - This dissertation is an attempt at the quality analysis of constitutive modelling of welding as a coupled thermo-mechanical or thermo-mechanical-metallurgical problem. Three types of inelastic theories of continua: unified viscoplasticity based on dislocation density theory, unified viscoplasticity based on potential theory, and transformation induced plasticity have been chosen for quantitative investigation. Material models proposed by Anand, Estrin and Mecking, Estrin, Robinson, and Leblond et.al. have been implemented into the finite element program ABAQUS. Specific subroutines have been written specifically for each constitutive equation. The material model implementation is based on the implicit solution of stress-strain relations and the derivation of associated constitutive tangent moduli necessary for the Nonlinear Finite Element solution procedures. Material model comparisons are based on numerical results obtained for the welding of thick plates; that is the bench mark problem considered in this thesis. DA - 1994 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1994 T1 - Modelling of welding with various constitutive models for steel TI - Modelling of welding with various constitutive models for steel UR - http://hdl.handle.net/11427/17443 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17443
dc.identifier.vancouvercitationOliver GJ. Modelling of welding with various constitutive models for steel. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 1994 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17443en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMathematicsen_ZA
dc.subject.otherApplied Mathematicsen_ZA
dc.titleModelling of welding with various constitutive models for steelen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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