%0 Journal Article
%T A LOCAL ADAPTIVE GRID REFINEMENT METHOD OF TETRAHEDRON ELEMENT AND ITS APPLICATION TO THE FINITE ELEMENT METHOD<br>一种四面体网格局部自适应方法在有限元中的应用
%A Cai Qingdong
%A <br>蔡庆东
%J 力学学报
%D 1998
%I 
%X A local refinement method of three dimensional tetrahedron elements is presented in this paper. It is the extension of Lo ¨hner's mesh enrichment method for two dimensional triangular grid. Three steps are included in the whole process. First, a certain number of elements which need enrichment is defined according to the remeshing parameters. Those elements are called initial enrichment elements, which will be subdivided into eight small tetrahedra by introducing the midpoints of each side as new verte...
%K grid adaption
%K region modifying
%K FEM
%K FCT<br>自适应
%K 区域整形
%K FCT有限元
%K 可压缩流动
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=8FA93829C9719D1CB38D236E15DEADBE&yid=8CAA3A429E3EA654&vid=340AC2BF8E7AB4FD&iid=E158A972A605785F&sid=FCACFF68346F8D4F&eid=98494933359B55EC&journal_id=0459-1879&journal_name=力学学报&referenced_num=0&reference_num=0