中国机械工程2024，Vol.35Issue(7)：1194-1204,11.DOI:10.3969/j.issn.1004-132X.2024.07.007
考虑附加损伤和缺口效应的缺口件多轴疲劳寿命预测模型
A Multiaxial Fatigue Life Prediction Model for Notched Parts Considering Additional Damage and Notch Effect
摘要
Abstract
To address the issue of significant errors in predicting the multiaxial fatigue life of not-ched components with local stress-strain method,a method for predicting the fatigue life of notched components under multiaxial loading was proposed based on the critical plane theory which toke the stress gradient and size of the notchs and influences of additional strengthening effects into account.The model was validated by experimental data from three different materials of notched specimens,and the prediction results of the proposed model were compared with those of two classic models.The results show that the prediction accuracy of the proposed model is higher than that of the other two models,and the prediction results are almost all within the double life error band.关键词
多轴疲劳/缺口件/缺口效应/附加损伤Key words
multiaxial fatigue/notched specimen/notch effect/additional damage引用本文复制引用
程琴,高建雄,袁逸萍,朱鹏年..考虑附加损伤和缺口效应的缺口件多轴疲劳寿命预测模型[J].中国机械工程,2024,35(7):1194-1204,11.基金项目
国家自然科学基金(52065062) （52065062）
新疆维吾尔自治区高校基本科研业务费科研项目(XJEDU2023P007) （XJEDU2023P007）
新疆维吾尔自治区重点研发计划(2021B01003) （2021B01003）
