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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：科学技术研究院科技创新研究院副院长
性别：男
毕业院校：爱丁堡大学
学位：博士
所在单位：建设工程学院
学科：岩土工程
办公地点：综合实验1号楼213室
联系方式：Tel: 0411-84702927
电子邮箱：y.wang@dlut.edu.cn
Determination of microscopic parameters of quartz sand through tri-axial test using the discrete element method
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论文类型：期刊论文
发表时间：2017-12-01
发表刊物：COMPUTERS AND GEOTECHNICS
收录刊物：Scopus、SCIE、EI
卷号：92
页面范围：22-40
ISSN号：0266-352X
关键字：Discrete Element Method (DEM); Tri-axial test; Fujian quartz sand; Calibration procedure; Microscopic parameters
摘要：A calibration procedure, in which coupled effects of microscopic parameters are considered, is proposed to determine the values of the microscopic parameters in the Discrete Element Method (DEM) for Fujian quartz sand. Laboratory tri-axial, tests are conducted to be compared with the DEM simulations and the effects of end restraint in the laboratory tests are eliminated through a digital image measurement system. Sensitivities of the macroscopic behaviour of the specimen to the microscopic parameters are analyzed through DEM simulations. Four coupled effects of the microscopic parameters on the macroscopic behaviour are investigated through a graphic method and then considered in the calibration procedure. (C) 2017 Elsevier Ltd. All rights reserved.