摘要
本文为了解决裂纹扩展问题,介绍一种新的断裂判据。在广义的Von Mises屈服准则基础上,结合裂纹尖端附近的奇异应力场,得到了一个新的判据,名叫广义最小塑性区尺寸判据,结果与参考文献[1]一致。概念清晰,方法简便。
In this paper, we introduce a new fracture criterion in order to solve crack propagation problems. Based on the generalized Von Mises yield criterion, the singular stress field near a crack tip is adopted. A new criterion is obtained. Its result is coincided with Ref. (1). The concept is clear, and the method is simple and convenient.
出处
《西南石油学院学报》
CSCD
1989年第3期44-48,共5页
Journal of Southwest Petroleum Institute
关键词
断裂判据
屈服准则
断裂
Fracture criterion
Yield criterion
New method
