Mesomechanics Finite-element Method for Determining the Shear Strength of Mudded Intercalation Materials  

作　　者：胡启军 SHI Rendan YANG Xiaoqiang CAI Qijie HE Tianjun HE Leping 

机构地区：[1]School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu 610500, China [2]School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 611756, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2017年第2期289-291,共3页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China(No.51574201);the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection(Chengdu University of Technology)(KLGP2015K006);the Scientific and Technical Youth Innovation Group(Southwest Petroleum University)(2015CXTD05)

摘　　要：A new method regarding mesomechanics finite-element research is proposed to predict the peak shear strength of mudded intercalation materials on a mesoscopic scale. Based on geometric and mechanical parameters, along with the strain failure criteria obtained by sample＇s deformation characteristics, uniaxial compression tests on the sample were simulated through a finite-element model, which yielded values consistent with the data from the laboratory uniaxial compression tests, implying that the method is reasonable. Based on this model, a shear test was performed to calculate the peak shear strength of the mudded intercalation, consistent with values reported in the literature, thereby providing a new approach for investigating the mechanical properties of mudded intercalation materials.A new method regarding mesomechanics finite-element research is proposed to predict the peak shear strength of mudded intercalation materials on a mesoscopic scale. Based on geometric and mechanical parameters, along with the strain failure criteria obtained by sample＇s deformation characteristics, uniaxial compression tests on the sample were simulated through a finite-element model, which yielded values consistent with the data from the laboratory uniaxial compression tests, implying that the method is reasonable. Based on this model, a shear test was performed to calculate the peak shear strength of the mudded intercalation, consistent with values reported in the literature, thereby providing a new approach for investigating the mechanical properties of mudded intercalation materials.

关 键 词：mudded intercalation mesomechanics finite-element method mesoscale structure shear strength 

分 类 号：TB302.3[一般工业技术—材料科学与工程]