考虑强度-应变率依赖性的岩石弹塑性动力模型

Dynamical model of rocks with consideration of strength-strain rate dependence

本文基于现有的岩石的弹塑性模型,作适当的简化,并引入了岩石强度对于应变率的依赖关系,建议了一种考虑强度对于应变率的依赖关系的岩石弹塑性动力模型。这一模型能充分利用现有配套的实验数据,并考虑了强度对于应变率的依赖性这一岩石的主要动力特性,能更真实地反映岩石的动力行为。

In this paper, on the basis of the available elastic-plastic models of rocks, by making appropriate simplification and introducting strength-strain rate dependence, a dynamical model of rocks with consideration of strength-strain rate dependence is suggested. This model may make full use of the available complete set of experimental data, and take into account the principal dynamical feature of rocks: strength-strain rate dependence, and hence can more realistically reflect the dynamical behavior of rocks.