Thermo-Elastic-Plastic Analysis at Finite Strain
For high pressure loading situations, classical plasticity theory may not be satisfactory since the usual assumption of the total strain being the sum of elastic and plastic components may not apply for non-infinitesimal strain, and thermo-mechanical coupling influences become important. Kinematics to deal with the finite deformation case are introduced and also a two component thermodynamic model to represent elastic-plastic deformation. One component is reversible thermo-elasticity, and the other plastic flow which absorbs some of the plastic work in the generation of crystal imperfections and the rest is dissipated into heat.
KeywordsElastic Strain Plastic Flow Plastic Work Finite Strain Thermomechanical Coupling
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