The last entrance plane method for contact indeterminacy between convex polyhedral blocks
The last entrance plane method for contact indeterminacy between convex polyhedral blocks
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DOI：
10.1016/j.compgeo.2019.103283
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发表时间：
2020
影响因子：
5.3
通讯作者：
Xi Wang;Wei Wu;Hehua Zhu;Hong Zhang;Jeen-Shang Lin
中科院分区：
文献类型：
--
作者：
Xi Wang;Wei Wu;Hehua Zhu;Hong Zhang;Jeen-Shang Lin
本文提出了最后进入平面（LEP）原理来识别物理接触平面，适用于解决凸多面体块体之间的接触不确定性问题。基于接触理论，LEP原理揭示了物理接触点位于最后一个入射平面上。在考虑几何和运动信息的基础上，提出了在侵彻前识别物理接触面的LEP方法。它为二维凸多边形块和三维凸多面体块之间的接触不确定性提供了统一的解决方案。采用非连续变形分析，几个数值试验进行了评估，以验证的精度和鲁棒性的LEP方法。
This study proposes the last entrance plane (LEP) principle to identify the physical contact plane, which is applicable to resolve contact indeterminacy between convex polyhedral blocks. Based on contact theory, the LEP principle reveals that the physical contact point lies on the last entrance plane. The LEP method is developed to identify the physical contact plane before penetration considering the geometrical and kinematical information. It offers a unified solution to contact indeterminacy between 2D convex polygonal and 3D convex polyhedral blocks. Using discontinuous deformation analysis, several numerical tests are evaluated to validate the accuracy and robustness of the LEP method.