Abstract

This study presents a multiphysics Internal State Variable (ISV) theory that couples the thermo-elasto-viscoplastic-damage model of Bammann with electroplasticity and other electricity-related electromagnetic phenomena. The model framework features internally consistent kinematics, thermodynamics, and kinetics. The abstraction of the developed ISV model can capture the full spectrum of multiphysics electro-mechanical behavior of the nonferromagnetic ductile metals. However, in the absence of electromagnetic fields the model reverts to the existing large deformation Bammann plasticity ISV model with the Horstemeyer damage ISV formalism.

摘要

本研究提出了一种多物理场内部状态变量 (ISV) 理论，该理论将 Bammann 的热弹粘塑性损伤模型与电塑性和其他与电相关的电磁现象相结合。模型框架具有内部一致的运动学、热力学和动力学。开发的 ISV 模型的抽象可以捕获非铁磁韧性金属的多物理场机电行为的全谱。然而，在没有电磁场的情况下，该模型恢复为现有的大变形 Bammann 塑性 ISV 模型，采用 Horstemeyer 损伤 ISV 形式。