摘要
基于多轴损伤临界面原理 ,根据多轴疲劳损伤和裂纹萌生与扩展的特点 ,在所建立的统一型多轴疲劳损伤模型的基础上 ,进一步推广应用到缺口件的多轴疲劳寿命预测中。经多轴疲劳试验验证表明 ,所建立的多轴疲劳损伤模型可以较好地预测比例与非比例加载下缺口件的多轴疲劳寿命。
On the basis of the critical plane approach and the characteristics of multiaxial fatigue damage and the crack initiation and growth, a unify multiaxial fatigue damage parameter based on the shear form is proposed by combining the behavior of the multiaxial fatigue damage and the crack initiation and propagation. The proposed multiaxial fatigue damage parameter is developed to predict multiaxial fatigue life prediction for notched specimens. It is shown by multiaxial fatigue experimental verification that the proposed multiaxial fatigue damage parameter can be used for multiaxial fatigue life prediction of notched specimens.
出处
《机械强度》
CAS
CSCD
北大核心
2003年第2期212-214,共3页
Journal of Mechanical Strength
基金
国家自然科学基金 (1 0 1 72 0 1 0 )
国家教育部高校骨干教师基金资助项目 (M0 1 0 2 0 0 0 2 )
北京市教委科技发展计划项目 (90 1 0 2 2 0 0 2 0 1 )
北京市青年科技骨干培养基金资助项目 (I0 1 0 2 0 1 0 1 )~~
关键词
多轴疲劳
临界面法
缺口件
寿命预测
Multiaxial fatigue
Critical plane approach
Notched specimens
Life prediction
