袁振.基于损伤力学的干涉配合连接结构寿命预测方法[J].民用飞机设计与研究,2018,(1):53-
基于损伤力学的干涉配合连接结构寿命预测方法
Fatigue Life Prediction Method of Interference Fit Riveted Joints
  
DOI:10.19416/j.cnki.1674-9804.2018.01.009
中文关键词:铆接连接件  干涉配合  损伤力学  有限元法
英文关键词:riveted butt single strap joint  interference fit riveting  damage mechanics  finite element method
基金项目:
作者单位
袁振 上海飞机设计研究院上海201210 
中文摘要:铆接连接件疲劳破坏常出现在铆钉孔周,现阶段常采用干涉配合提高铆接连接件疲劳寿命。以干涉配合铆接连接件为研究对象,采用连续介质损伤力学方法,研究其在循环载荷作用下疲劳破坏特性。通过APDL语言对ANSYS软件进行二次开发,建立了结构疲劳裂纹萌生寿命的损伤力学——有限元法,可以预估干涉配合铆接连接件的疲劳寿命。计算了典型铆接件的疲劳寿命,并与SWT临界平面法预估的疲劳寿命进行对比,验证损伤力学——有限元法的准确性。
英文摘要:Fatigue failure of riveted butt single strap joints frequently occurs around the fastener hole. In order to improve the fatigue life of the rivet joints, fatigue life improving techniques such as interference fit methods are used. This dissertation focuses on the study of predicting the fatigue life of butt single strap joints with interference fit based on continuum damage mechanics. Damage mechanics finite element method(DMFE) of structure fatigue crack initiation life prediction under cyclic loading is presented with ANSYS Secondary Development by APDL to compute the fatigue life of interference fit riveted butt single strap joints. Comparison between the results of SWT and DMFE shows the accuracy of DMFE is acceptable.
点击次数: 40
下载次数: 50
查看全文  查看/发表评论  下载PDF阅读器