%0 Journal Article
%T DETECTION OF 3D ROCK BLOCK CONTACTS BY PENETRATION EDGES<br>岩石块体三维接触判断的侵入边法
%A Chen Wensheng
%A Zheng Hong
%A Cheng Yungming
%A Ge Xiurun
%A <br>陈文胜
%A 郑宏
%A 郑榕明
%A 葛修润
%J 岩石力学与工程学报
%D 2004
%I 
%X Detection of contacts between 3D blocks is a key problem in 3D DDA(discontinuous deformation analysis)and DEM (discrete element method) analysis. In this paper,the limitations of the approaches commonly used to detect 3D block contacts are discussed. A new approach called penetration edges method is put forward for the detection of contacts in 3D blocks system,and the contacts between two 3D blocks are classified into seven types. The principle of this new approach is robust and can overcome the limitations of the commonly used methods. This new method can greatly reduce the amount of calculation and is easy to be coded for analysis.
%K rock mechanics
%K numerical method
%K 3D blocks
%K contact detection
%K penetration edge (PE)
%K discrete element method
%K discontinuous deformation analysis<br>岩石力学
%K 数值方法
%K 三维块体
%K 接触判断
%K 侵入边
%K 离散单元法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=ADA67A6996FF2CBA&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=E158A972A605785F&sid=90075EB19043D533&eid=F16C0F639D87527E&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=3&reference_num=12