论文类型：期刊论文

第一作者：Cheng, Kuang

通讯作者：Wang, Y (reprint author), Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China.

合写作者：Wang, Yin,Yang, Qing,Mo, Yanbao,Guo, Ying

发表时间：2017-12-01

发表刊物：COMPUTERS AND GEOTECHNICS

收录刊物：Scopus、SCIE、EI

文献类型：J

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.

是否译文：否