摘要
基于近年来在裂纹尖端塑性区内应力应变分布、损伤和断裂的塑性消耗特征等方面所做的研究工作，对传统断裂准则进行了改进，提出一种考虑了构件几何及应力三轴性的新的断裂准则．由一系列几何尺寸的紧凑拉伸试验的验证表明，理论预言与实验测量结果符合得很好．
Damage mechanics and stress strain concentration behavior of notched component are employed to develop a fracture criterion for engineering materials. A modified J integral criterion is proposed. It includes the effects of structural component geometry and stress triaxiality and makes use of test results of small laboratory specimens. Tests of single edge crack specimen with different crack length are made to support the proposed model.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1999年第4期52-56,共5页
Journal of Xi'an Jiaotong University
