岩土材料损伤演化规律研究

Research on the Damage Evaluation Law of Geomaterial

损伤演化规律是损伤本构理论研究的核心问题，已有的岩土损伤演化方程还存在很多问题，因而给出一个具有理论依据的损伤演化方程具有十分重要的意义。对当前岩土材料损伤演化规律的研究进行了总结分析，认为利用能量耗散原理建立损伤演化方程是一个可行的办法。从损伤是耗散能量的过程这一基本性质出发，建立了一个适用于结构性土体的损伤演化方程。

Damage evaluation law is the key problem in the research on the damage constitutive theory, but there are still many problems need to be studied, so it is very important to give a theory-based damage evaluation equation. The current research advances of geomaterials are analyzed in this paper and it is considered as a doable method to set up the damage evaluation by the theory of energy dissipation. From basic characteristics that damage is a course of energy dissipation, a damage evaluation equation for structured soils has been established.