| Type: | Ph.D.-level, Open University
Language: English |
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Previous course: C7011
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No credit points with: C7011
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Prerequisite: 70102
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Recommended semester: 7th - 9th semester
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Scope and form: 2 lecture modules per week, exercises and discussion of problems.
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Examination: Written exam (13-scale)
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| Contact person: | Viggo Tvergaard, Building 404, Tel. +45 4525 4273, email vit@mek.dtu.dk |
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Department: Department of Solid Mechanics
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Aim: Explaining the background of nonlinear material behavior in metals, polymers, ceramics etc., and practicing the application of material models describing plastic as well as viscous behavior, with focus on modern computational methods. Describing analyses of structural collapse.
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Contents: Deformation- and flow theories for elastic-plastic materials. Convexity and normality. Micromechanisms, leading to inelastic deformations. Variational formulations and equilibrium equations. Numerical solution of elastic-plastic problems, including beam, plate and shell structures. Plastic buckling, collapse, and tensile instabilities. Perfect plasticity and limit load analysis, including upper and lower bounds. Viscoplasticity, including strain-rate sensivity of plastic flow and creep at elevated temperatures. Numerical solution of elastic-vicoplastic problems.
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