摘要
本文引进形状改变比能的概念,对平面裂纹起裂扩展问题进行了讨论,给出一个与路径无关的J*积分,通过I型裂纹的应用,其结果与现行公开发表的文献或手册结果一致。
J* integral of the deviator strain energy per unit volume is introduced in this paper. The problem of plane-crack critical growth is discussed and a path-independent line integral J* is given. Mode I stress intensity factors of cracked beams are obtained using the approach. The results are shown to agree well with those available in the open literature.
出处
《工程力学》
EI
CSCD
北大核心
2000年第6期110-116,共7页
Engineering Mechanics