%0 Journal Article
%T MULTIPLE POTENTIAL DISCONTINUOUS BIFURCATION MODEL FOR JOINTED ROCKS AND ITS APPLICATION<br>裂隙岩体局部化破坏多重势面分叉模型及其应用
%A Liu Yuangao
%A Zhou Weiyuan
%A Zhao Jidong
%A Yang Ruoqiong
%A <br>刘元高
%A 周维垣
%A 赵吉东
%A 杨若琼
%J 岩石力学与工程学报
%D 2003
%I 
%X In the framework of the multiple potential surface elasto-plastic theory,the discontinuous bifurcation model used to simulate the failure of the jointed rocks is presented in this paper. Classical localization analysis is performed to the tangent stiffness tensor,thus the condition for discontinuous bifurcation is derived. Numerical method is formulated to calculate localization directions. With the aid of FEM,analysis is made on several corresponding specimen with initial distributed cracks under tension and compression.
%K rock mechanics
%K jointed rocks
%K multiple potential surface
%K localization
%K discontinuous bifurcation<br>岩石力学
%K 型隙岩体
%K 多重势面
%K 局部化
%K 不连续分叉
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=568C28830F1DD5AC&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=38B194292C032A66&sid=EF78DD85C21CB57F&eid=8C27CCA578E52082&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=9&reference_num=19