Applied Mathematics and Mechanics (English Edition) ›› 1985, Vol. 6 ›› Issue (6): 533-544.
尹双增
Yin Shuang-zeng
摘要: The existence of the plastic area around the crack tip is an important factor against the cracking. In this plastic region, the crack ing most likely develops in such a direction along which the distance from the existant crack tip to the plastic region edge is the shortest one.