机械制造与自动化2026，Vol.55Issue(4)：44-48,5.DOI:10.19344/j.cnki.issn1671-5276.2026.04.009
含缺口的复合材料层合板疲劳寿命预测
Fatigue Life Prediction of Composite Laminates with Notches
蒋寒斌 1郭俊华 1童宗鹏 2温华兵1
作者信息
- 1. 江苏科技大学 能源与动力学院,江苏 镇江 212100
- 2. 中国船舶集团有限公司第七一一研究所,上海 201108
- 折叠
摘要
Abstract
Fatigue life prediction of notched structures often requires consideration of the effect of stress gradients present in the vicinity of the notch.Direct application of the stress field intensity method,which is widely used for metallic materials,to predict the fatigue life of notched composite laminates results in significant errors.Therefore,this paper proposes a two-dimensional planar vector stress field intensity method(ETEVM)and an improved three-dimensional spatial vector stress field intensity method(CTSVM')to predict fatigue strength and fatigue life,and Simulation verification shows that the prediction accuracy of both methods is higher than that of the classical one-dimensional stress field intensity method(COSFI).The'CTSVM'prediction error falls within twice the error band,demonstrating that the improved method can be effectively used for fatigue life prediction.关键词
复合材料层合板/应力梯度/应力场强法/两倍误差带/疲劳寿命预测Key words
composite laminates/stress gradient/stress field intensity method/twice the error band/fatigue life prediction分类
通用工业技术引用本文复制引用
蒋寒斌,郭俊华,童宗鹏,温华兵..含缺口的复合材料层合板疲劳寿命预测[J].机械制造与自动化,2026,55(4):44-48,5.
