%0 Journal Article
%T STUDY ON THE PROBLEMS OF CONTACT IN THE NUMERICAL SIMULATION OF SHEET FORMING
%A KF Zhang
%A FX Diao
%A QF Song
%A W Wu
%A KB Chen
%A TXie Harbin Institute of Technology
%A Harbin
%A China
%A <br>K.F. Zhang
%A F.X. Diao
%A Q.F. Song
%A W. Wu
%A K.B. Chen and T.Xie Harbin Institute of Technology
%A Harbin
%A China
%J 金属学报(英文版)
%D 2000
%I 
%X This study is concerned with the problems of contact in the process of numerical simulation of sheet metal forming in rigid visco-plastic shell FEM. In respect of analysis of sheet deep drawing process,for the tool model described by triangular elements, a kind of contact judging algorithm about the correlation between the node of deformed mesh and the triangular element of a tool is presented. In SPF/DB Lagrangian multiplier method is adopted to solve the contact problem between deformed meshes, and a new reliable practical dynamic contact checking algorithm is presented. As computation examples, the simulation results of metal sheet deep drawing and SPF/DB are introduced in this paper.
%K kcontact search algorithm
%K rigid visco-plastic shell FEM
%K Lagrangian multiplier method
%K sheet metal forming<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=91AAF8E981AB8F031F4D4507CCDA051A&yid=9806D0D4EAA9BED3&vid=FC0714F8D2EB605D&iid=0B39A22176CE99FB&sid=3389C664025A98F9&eid=1A033C02510EFBE6&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=5