Improvement of contact calculation in spherical discontinuous deformation analysis
Improvement of contact calculation in spherical discontinuous deformation analysis
复制标题
球形不连续变形分析中接触计算的改进
DOI:
10.1007/s11431-016-0203-6
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发表时间:
2017-01
期刊:
影响因子:
--
通讯作者:
Tan Fei
中科院分区:
文献类型:
--
作者:
Wang Long;Jiao YuYong;Huang GangHai;Zheng Fei;Zhao Zhiye;Tan Fei
Discontinuous deformation analysis (DDA) method is a newly developed discrete element method which employs the implicit time-integration scheme to solve the governing equations and the open-close iteration (OCI) method to deal with contact problem, its computational efficiency is relatively low. However, spherical element based discontinuous deformation analysis (SDDA), which uses very simple contact type like point-to-point contact, has higher calculation speed. In the framework of SDDA, this paper presents a very simple contact calculation approach by removing the OCI scheme and by adopting the maximal displacement increment (MDI). Through some verification examples, it is proved that the proposed method is correct and effective, and a higher computational efficiency is obtained.
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影响因子:
5.3
作者:
Jiang QH;Yeung MR;Sun N
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影响因子:
3.3
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DOI:
10.1016/j.ijrmms.2015.05.008
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2015-09
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DOI:
10.1002/nag.2314
发表时间:
2015-04-10
影响因子:
4
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Jiang, Qing-Hui
DOI:
--
发表时间:
1971
期刊:
Journal of Geological Resource and Engineering
影响因子:
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作者:
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通讯作者:
P. Cundall