期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
CRACK TIP SUPERBLUNTING:EXPERIMENT,THEORY AND NUMERICAL SIMULATION
1
作者 杨卫 郭田福 傅增力 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 1993年第2期131-141,共11页
Experimental revelation of superblunting along plane strain predominant crack tip segment is re- ported here for modified polyproplene.As elucidated by a heuristic model of progressive circumferential cold-draw,the fo... Experimental revelation of superblunting along plane strain predominant crack tip segment is re- ported here for modified polyproplene.As elucidated by a heuristic model of progressive circumferential cold-draw,the formation of superblunting crack tip depends critically on the ratio between the cold-draw prop- agation speed and the loading speed,and contributes significantly to the material toughening,especially for the improvement in impact toughness.Detailed numerical calculations are conducted based on a hyperelastic-viscoplastic and anisotropic damage constitutive model at finite deformation.The simulated results recapitulate the essential features of crack tip superblunting. 展开更多
关键词 crack tip superblunting polyproplene TOUGHENING numerical simulation
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部