%0 Journal Article
%T NUMERICAL ANALYSIS OF CRACK PROPAGATION UNDER COMPRESSION<br>受压状态下裂纹扩展的数值分析
%A Wang Shuilin
%A Ge Xiurun
%A Zhang Guang
%A <br>王水林
%A 葛修润
%A 章光
%J 岩石力学与工程学报
%D 1999
%I 
%X Based on the theory of linear elastic fracture m echanics(LEFM), the crack propagation of rock specim en is sim ulated through num ericalm anifold m ethod(NMM). Meanw hile, contact-friction ofthe inter- faces ofm aterials is m odeled by m eans ofim proved Lagarangian m ethod, and stress intensity factors are ob- tained by a path independent contour integralm ethod. Both the trajectories of crack propagation and the loads of different stages determ ined from this analysis are sim ilar to experim entalresults. Then num erical tests are carried out for differentinclination ofpreexisting crack.
%K linear elastic fracture m echanics
%K num ericalm anifold m ethod
%K crack propagation
%K rock m echan-
%K ics<br>线弹性断裂力学
%K 裂纹扩展
%K 岩石力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=7E2F7210950F3B46&yid=B914830F5B1D1078&vid=13553B2D12F347E8&iid=B31275AF3241DB2D&sid=93661EC4C0CCEA67&eid=DEE640F0CDC9D495&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=12&reference_num=15