弹粘塑性问题的增量泛函及其变分原理

Incremental Functional and Its Variational Principle in Elastic Viscoplasticity

塑性应变率是反映固体材料在动力作用下处于塑性状态力学特性的一个重要因素,在塑性动力学的分析和计算中应考虑它.本文在弹粘塑性动力本构模型的基础上,利用泛函分析理论导出塑性动力学问题的增量泛函.

The plastic strain rate is a key factor that represents the dynamical charateristic of ma- terials under plastic state.The plastic strain rate must be considered in the plastic dynamics. Based on the constitutive realtion of elastic viscoplasticity,the incremental functional is de- rived by means of non-linear functional analysis theory in this paper.