The Three-Stage Model Based on Strain Strength Distribution for the Tensile Failure Process of Rock and Concrete Materials

作     者：Rukun Guo Shihai Li Dong Zhou 

作者机构：Institute of MechanicsChinese Academy of Sciences 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2016年第29卷第5期

页      面：514-526页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Project supported by the National Program on Key Basic Research Project of China(973 Program,No.2015CB250903) CAS Strategic Priority Research Program(B)(No.XDB10030303) 

主　　题：fractured heterogeneity rock tensile Strain localization intact granite softening macroscopic 

摘      要：A three-stage model is introduced to describe the tensile failure process of rock and concrete *** of the material is defined to contain three stages in the model,which include elastic deformation stage,body damage stage and localization damage *** failure mode change from uniform body damage to localization damage is *** heterogeneity of material is described with strain strength *** fracture factor and intact factor,defined as the distribution function of strain strength,are used to express the fracture state in the failure *** the distributive parameters can be determined through the experimental stress-strain curve.