利用细观力学的Eshelby等效夹杂方法建立了考虑损伤和无损岩石塑性变形的Helmholtz自由比能函数,并用连续损伤介质力学方法推导出了考虑损伤和无损岩石塑性变形耦合的岩石弹塑性损伤本构关系,给出了损伤演化方程和塑性应变发展方程,该模型还反映了岩石损伤部分不能承受拉应力等力学特性。
Using the Eshelby equivalent inclusion method, a Helmholtz free energy function for damage rock with plastic strain is setup, and a constitutive relationship is derived based on CDM, and the corresponding evolvement equations for damage and plastic strain are presented. The model can reflect the mechanical properties of failed rock.