Crack Plane Twist for Mixed Mode Crack
Tian Changhai Chen Haoran
(Dalian University of Technology 116024)
Su HongyingCui Yuanshan
(AnShan Iron and Steel Group Complex Technology Center 114002)

Abstract: In the light of crack plane twist under propagation of mixed mode, in this paper, the following results were presented: maximum cicumferential strain controls twist of crack plane; various mixe mode crack propagation angle were derived out;tests of crack propagation rate show that, experimental values of I-III mixed mode crack plane twist angle are in agreement with theoretical values static load and unstable losed.
Keywords: mixed mode crack, crack plane twist,maximum circumferential strain.