SPH-FEM simulations of microwave-treated basalt strength

作     者：Chun YANG Ferri HASSANI Ke-ping ZHOU Feng GAO Ameen TOPA 杨春;Ferri HASSANI;周科平;高峰;Ameen TOPA

作者机构：School of Resources and Safety EngineeringCentral South UniversityChangsha 410083China Department of Mining and Materials EngineeringMcGill University3450 UniversityFrank Dawson Adams Bldg.MontrealQC H3A 0E8Canada Research Center for Mining Engineering and Technology in Cold RegionsCentral South UniversityChangsha 410083China Institute of Transportation InfrastructureUniversiti Teknologi PETRONASSeri IskandarPerak 32610Malaysia Department of Maritime TechnologyUniversity Malaysia TerengganuKuala Terengganu 21300Malaysia 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2022年第32卷第6期

页      面：2003-2018页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 080104[工学-工程力学] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0813[工学-建筑学] 0814[工学-土木工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China (No. 51774323) the Natural Science Foundation of Hunan Province, China (No. 2020JJ4704) the Fundamental Research Funds for the Central Universities of Central South University, China (No. 2018zzts216) the financial support from the China Scholarship Council the support of the high-performance computer from Compute Canada 

主　　题：microwave irradiation microwave-assisted rock breakage rock mechanics smoothed particle hydrodynamics(SPH) parametric sensitivity analysis 

摘      要：Microwave precondition has been highlighted as a promising technology for softening the rock mass prior to rock breakage by machine to reduce drill bit/cutter wear as well as inverse production *** numerically explore the effect of numerical parameters on rock static strength simulation,and determine the numerical mechanical parameters of microwave-treated basalts for future drilling and cutting simulations,numerical models of uniaxial compression strength(UCS)and Brazilian tensile strength(BTS)were established with the coupling of smoothed particle hydrodynamics and finite element method(SPH-FEM).To eliminate the large rock strength errors caused by microwave-induced damage,the cohesion and internal friction angle of microwave-treated basalt specimens with the same microwave treatment parameters were calibrated based on a linear Mohr-Coulomb *** on parametric sensitivity analysis of SPH simulation of UCS and BTS,experimental UCS and BTS values were simultaneously captured according to the same set of calibrated cohesion and internal friction angle data,and the UCS modeling results are in good agreement with experimental ***,the effect of microwave irradiation parameter on the basalt mechanical behaviors was evaluated.