A Model of Point-to-Face Contact for Three-Dimensional Discontinuous Deformation Analysis注意:本论文已在《Rock Mechanics and Rock Engineering.
August 18, 2003 # Springer-Verlag》发表 Q. H. Jiang1[姜清辉] and M. R. Yeung2 Received August 30, 2002; accepted April 7, 2003 Summary:The key to three-dimensional discontinuous deformation analysis (3D DDA) is a rigorous contact
theory that governs the interaction of many three-dimensional blocks. This theory must provide
algorithms to judge contact types and locations and the appropriate state of each contact, which
can be open, sliding or locked. This paper presents a point-to-face contact model, which forms a
part of the contact theory, to be used in 3D DDA. Normal spring, shear spring and frictional force
submatrices are derived by vector analysis and the penalty method. Also given are the ‘‘openclose’’
iteration criteria and operations performed for different changes in contact state. Sliding at
a contact can occur in any direction parallel to the contact face, as opposed to one of two
directions in two-dimensional DDA. This point-to-face contact model has been implemented into
a 3D DDA computer program, and numerical results from several test cases demonstrate the
validity of the model and the capability of the program. 1、浏览PDF格式全文需要使用软件--Abode Acrobat(由于软件较大并常见,我站不提供下载) 2、下载论文全文请点击鼠标右键“另存为”或使用网络蚂蚁下载(515KB)
本站收录的本文作者的其他论文: 3、三维边坡稳定性极限平衡分析系统软件SLOPE^3D的设计及应用
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