基于局部凸分解的一般多面体接触搜索方法

Translated title of the contribution: A contact detection algorithm of general polyhedrons based on local convex decomposition

Hong Zhang, Wei Wu, Xiaofei Guan, Yingbin Zhang, Lu Zheng, Yanqiang Wu, Guangqi Chen

Research output: Contribution to journalArticlepeer-review

Abstract

To address the indeterminacy of contacts involving nonconvex angles of arbitrarily shaped polyhedron, an easy-to-implement local convex decomposition method(LCD), dividing any arbitrary angle along the extensive plane angle of concave dihedral angles into a set of convex angles, was proposed and employed to extend the entrance plane method(EPM). The LCD-EPM is a universal method for contact detection of general polyhedrons, and herein, enabled the use of a three-dimensional discontinuous deformation analysis (3-D DDA) to calculate contacts between general polyhedrons. Finally, the extended 3-D DDA program was used to illustrate the powerful ability of LCD including contact detection and calculation as well as an impact-contact behaviour analysis of general polyhedrons, which validates the correctness and robustness of the LCD-EPM. The extended 3-D DDA program can be applied in mechanical analyse of complex polyhedral block systems.

Translated title of the contributionA contact detection algorithm of general polyhedrons based on local convex decomposition
Original languageChinese (Traditional)
Pages (from-to)2709-2720
Number of pages12
JournalYanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
Volume37
Issue number12
DOIs
Publication statusPublished - Dec 1 2018

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Geology

Fingerprint Dive into the research topics of 'A contact detection algorithm of general polyhedrons based on local convex decomposition'. Together they form a unique fingerprint.

Cite this