近年来岩土损伤本构模型取得了长足的进步,但岩土材料损伤复合体理论的一个基本问题——复合体两个组分的应力、应变合成模式上存在争议。从损伤力学的基础——连续介质力学的基本概念出发,对岩土损伤复合体理论应力应变合成的合理模式进行了深入研究。得出了一般损伤情况下的岩土损伤复合体理论的应力应变合成公式,给出了各向同性损伤情况下的简化公式,认为对于岩土损伤复合体理论不能直接采用并联、串联或简单的混合类型复合模式。
Although the constitutive model for geomaterial damage has developed significantly, there is still dispute regarding the synthesis mode of stress and strain for the complexus theory of geomaterials damage. The synthesis mode of stress and strain for the complexus theory of geomaterials damage was studied in depth in light of the basic concepts of continuum mechanics. A general synthesis mode of stress and strain for the complexus theory of geomaterials damage is put forward. A simplified formula of the synthesis mode of stress and strain for the complexus theory of geomaterials damage in isotropic damage has been obtained. It is concluded that a parallel, series or simple mixed assumption can not be applied directly to the synthesis mode of stress and strain for the complexus theory of geomaterials damage.