弹脆性材料的损伤本构关系及应用

本文根据连续损伤力学方法,对弹脆性材料损伤的力学响应进行一般分析。理论分析中,材料与损伤都是各向异性的。还导出了计算损伤张量、有效弹性张量、真实应力张量以及损伤能耗率张量的实用表达式。

A CONSTITUTIVE RELATION OF ELASTO-BRITTLE MATERIAL WITH DAMAGE AND ITS APPLICATION

Based on principle of continuum damage mechanics, the mechanical response of the elasto-brittle material with damage is analyzed theoretically in this paper. Both material and damage are considered to be anisotropic. The expressions for the damage tensor, the effective elasticity tensor, the true stress tensor and the damage energy dissipation rate tenare also derived.Based on principle of continuum damage mechanics, the mechanical response of the elasto-brittle material with damage is analyzed theoretically in this paper. Both material and damage are considered to be anisotropic. The expressions for the damage tensor, the effective elasticity tensor, the true stress tensor and the damage energy dissipation rate tenare also derived.