Damage smear method for rock failure process analysis

作     者：G.Li X.F.Cheng H.Pu C.A.Tang 

作者机构：state key laboratory of coastal and offshore engineeringdalian university of technologydalian116024china state key laboratory for geomechanics and deep underground engineeringchina university of mining and technologyxuzhou221116china ocean engineering joint research center of dut-uwadalian university of technologydalian116024china 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2019年第11卷第6期

页      面：1151-1165页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported in part by the National Natural Science Foundation of China (Grant Nos.51679028 and 51879034) Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Grant No. SKLGDUEK1804) the Fundamental Research Funds for the Central Universities (Grant No.DUT18JC10) 

主　　题：Failure process Smear method Meso-damage Finite element method (FEM) Rock failure process analysis (RFPA) 

摘      要：Damage smear method(DSM)is adopted to study trans-scale progressive rock failure process,based on statistical meso-damage model and finite element *** statistical approach is utilized to reflect the mesoscopic rock *** constitutive law of representative volume element(RVE)is established according to continuum damage mechanics in which double-damage criterion is *** damage evolution and accumulation of RVEs are used to reveal the macroscopic rock failure *** single RVE will be represented by one unique *** initiation,propagation and coalescence of meso-to macro-cracks are captured by smearing failed *** above ideas are formulated into the framework of the DSM and programed into self-developed rock failure process analysis(RFPA)*** laboratory-scale examples are conducted and the well-known engineering-scale tests,*** Energy of Canada Limited’s(AECL’s)Underground Research Laboratory(URL)tests,are used for *** shows that the simulation results match with other experimental results and field observations.