Algorithmic stabilization of FE analyses of 2D frictional contact problems with large slip
作者: W.N. LiuG. MeschkeH.A. Mang
作者单位: 1Department of Chemical Engineering and Material Science, UC Irvine, Irvine, USA
2Institute for Structural Mechanics, Ruhr-University Bochum, Bochum D-44780, Germany
3Institute for Strength of Materials, Vienna University of Technology, Karlsplatz 13/202, Vienna A-1040, Austria
刊名: Computer Methods in Applied Mechanics and Engineering, 2003, Vol.192 (16), pp.2099-2124
来源数据库: Elsevier Journal
DOI: 10.1016/S0045-7825(03)00252-4
关键词: 14
原始语种摘要: Abstract(#br)This paper is concerned with a regularization method to avoid slip oscillations of contact nodes resulting from lack of C 1 -continuity of low-order finite element discretizations. The purpose of this method is to enhance the robustness of contact algorithms for 2D contact analyses. Based on the actual finite element boundary, a virtual (smooth) boundary with C 1 -continuity is established to define the normal vector and, in case of frictional contact, also the tangential vector. The proposed regularization method allows using standard low-order elements. The respective algorithm including the consistent contact matrix is derived for frictionless as well as for frictional contact. Selected numerical examples demonstrate the effectiveness of the method.
全文获取路径: Elsevier  (合作)