摘要
以应力场强法为基础，研究非对称缺口构件的裂纹形成部位和寿命，提出了应力场强函数σＦＤ，σＦＤ该函数既考虑了危险部位处的应力值，又考虑了其附近损伤区的应力和应力梯度对裂纹形成的贡献。
Formative position of fatigue crack, and fatigue life of asymmetric notched component are investigated.A stress field intensity function, which reflects effect of the equivalent stress at perilous point and that of the stresses and its gradient within the damage area on crack formation, is presented.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1996年第5期486-490,共5页
Journal of University of Science and Technology Beijing
基金
冶金部基础理论研究基金
关键词
应力场强法
非对称缺口
裂纹形成
构件
复合应力
stress field intensity method, asymmetric notch, crack formation, equivalent stress, stress gradient
