Improvement of contact calculation in spherical discontinuous deformation analysis

被引：0

作者：

WANG Long ^{[1
]}

JIAO YuYong ^{[1
]}

HUANG GangHai ^{[1
]}

ZHENG Fei ^{[1
,2
]}

ZHAO ZhiYe ^{[3
]}

TAN Fei ^{[1
]}

机构：

[1] State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

[2] Department of Civil and Environmental Engineering, University of California

[3] School of Civil and Environmental Engineering, Nanyang Technological University

来源：

Science China Technological Sciences | 2017年 / 05期

基金：

中国国家自然科学基金;

关键词：

3D-DDA; spherical element; open-close iteration; calculation efficiency;

D O I：

暂无

中图分类号：

TU45 [岩石（岩体）力学及岩石测试];

学科分类号：

0801 ; 080104 ; 0815 ;

摘要：

Discontinuous deformation analysis solve(DDA)method is a newly developed the discrete element method which employs deal the implicit time-integration scheme to the governing equations low.and open-close spherical iteration(OCI)based method to with contact problem,its computational which efficiency very is relatively However,element has discontinuous deformation In analysis(SDDA),SDDA,uses simple contact type like point-to-point calculation contact,higher removing calculation speed.scheme the framework of the this paper presents a very simple(MDI).contact approach by the OCI that and by adopting maximal and displacement increment Through some verification obtained.examples,it is proved the proposed method is correct effective,and a higher computational efficiency is

引用

页码：765 / 771

页数：7

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