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论文:2013,Vol:31,Issue(4):556-559 |
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引用本文： |
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谢伟, 黄其青, 屠少威. 单细节锪窝铆接结构疲劳特性有限元分析[J]. 西北工业大学 |
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Xie Wei, Huang Qiqing, Tu Shaowei. Finite Element Analysis of Fatigue Behavior at Countersunk Fastener Holes[J]. Northwestern polytechnical university |
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| 单细节锪窝铆接结构疲劳特性有限元分析 |
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| 谢伟, 黄其青, 屠少威 |
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| 西北工业大学 航空学院, 陕西 西安 710072 |
| 摘要: |
| 锪窝铆接结构是航空工程中常用的一种连接形式,锪窝孔边常常会萌生疲劳裂纹,因此研究锪窝铆接结构的疲劳特性有着重要的工程意义。应用ABAQUS软件建立单细节锪窝铆接结构有限元模型,对其进行应力分析,给出铆钉干涉量与结构最大应力水平之间的关系。同时将应力分析结果导入到MSC.Fatigue中利用名义应力法计算得到模型的孔边细节疲劳寿命。通过计算不同干涉量下的结构疲劳寿命,研究干涉配合对锪窝铆接结构疲劳特性的影响规律,给出最佳干涉范围,对铆接结构耐久性分析具有重要的工程参考价值。 |
| 关键词:
锪窝孔
疲劳裂纹
有限元模型
疲劳寿命
干涉
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| Finite Element Analysis of Fatigue Behavior at Countersunk Fastener Holes |
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| Xie Wei, Huang Qiqing, Tu Shaowei |
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| College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| The countersunk fastener hole structure is widely used in aeronautical engineering.The fatigue crack ap-pears easily due to the stress concentration near the fastener hole.The finite element model (FEM) for the counter-sunk fastener hole structure was constructed by using the ABAQUS software and the stresses of model were ana-lyzed.The relationship between the interference fit level and maximums stress level was discussed.The stress re-sults calculated with FEM were transferred into MSC.Fatigue and then the local fatigue life nearby the hole was ob-tained by using the nominal stress approach.By calculating the structural fatigue life under different interferences, the effect of interference fit on the fatigue properties at the countersunk hole was analyzed and the best range of in-terference was given. |
| Key words:
ABAQUS
fatigue of materials
finite element method
mathematical models
rivets
stress concentration
stresses
countersunk hole
fatigue crack
interference
nominal stress approach
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| 收稿日期: 2012-11-18
修回日期:
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| DOI: |
| 基金项目: 国家自然青年科学基金(11102158);西北工业大学基础研究基金(JC20110201)资助 |
| 通讯作者:
Email： |
| 作者简介: 谢伟(1978-),西北工业大学副教授,主要从事结构疲劳、断裂与可靠性的研究。
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| 作者相关文章 |
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| 谢伟 在本刊中的所有文章 |
| 黄其青 在本刊中的所有文章 |
| 屠少威 在本刊中的所有文章 |
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1．谢伟, 屠少威, 黄其青, 谢远望.铆钉填充锪窝孔边角裂纹应力强度因子分析[J]. 西北工业大学, 2012,30(4): 524-528 |
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