%0 Journal Article
%T EXPERIMENTAL AND THEORETICAL STUDY ON SIZE EFFECT ON STRAIN SOFTENING OF ROCK MATERIALS<br>岩石材料应变软化尺寸效应的实验和理论研究
%A Pan Yishan
%A Wei Jianming
%A <br>潘一山
%A 魏建明
%J 岩石力学与工程学报
%D 2002
%I 
%X The sandrock specimens of different diameters and heights in stress-strain test are adopted. The size effect on rock strain softening is found. The rock brittleness increases after postpeak with the height of the specimen. To this result, the theoretical analysis and experimental result reach a good agreement by using the gradient plastic theory.
%K rock
%K strain softening
%K size effect
%K gradient plastic theory<br>岩石
%K 应变软化
%K 尺寸效应
%K 梯度塑性理论
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=FE1F748A59F7D067&yid=C3ACC247184A22C1&vid=659D3B06EBF534A7&iid=0B39A22176CE99FB&sid=1B64850025D0BBBE&eid=AD16A18DBD734D13&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=39&reference_num=5