Damage model for rock-like materials and its application
The inelastic failure of rock-like materials and structures is characterized by the initiation and evolution of cracks and the frictional sliding on the closed crack surfaces. Plastic damage models are the major measures used to address cracking-related failure analysis, and are widely used by various researchers, such as Lemaitre (1990); Chaboche (1992), Seweryn and Mroz (1998), and de Borst et al. (1999). As a typical rock-like material, the mechanical behavior of concrete at ambient temperature is similar to that of rock; its damage evolution behavior has been investigated widely. Several damage models for concrete-like materials are described in the existing literature.