Non-Isothermal Coupled Thermo-Damage-Plasticity

Definition

Constitutive theory accounting for coupling between two dissipative phenomena: thermoplasticity and thermo-damage.

Overview

The increasing demands for high performance materials require the adequate constitutive modeling, as well as the appropriate predictions of the overall failure mechanisms under complex thermomechanical loads. When engineering materials classified as elastic-plastic-damage (e.g., polycrystalline metals) are subjected to external loading, the material degradation connected with slip rearrangements of crystallographic planes through dislocation motion, observed at the macroscale as plastic behavior (Chaboche [1]), is accompanied by the development of other microscopic defects, like microcracks and micro-voids. The nucleation, growth, and interaction of these micro-defects under external loads result in a deterioration process on the macroscale and, as a consequence, change of the constitutive properties of the material.

If the elastic-plastic-damage...