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论文:2012,Vol:30,Issue(4):524-528 |
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引用本文： |
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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 |
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Xie Wei, Tu Shaowei, Huang Qiqing, Xie Yuanwang. Some Useful Results of Investigation on Stress Intensity Factors (SIFs) of Corner Crack at Rivet-Filled Countersunk Hole[J]. Northwestern polytechnical university |
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| 铆钉填充锪窝孔边角裂纹应力强度因子分析 |
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| 谢伟, 屠少威, 黄其青, 谢远望 |
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| 西北工业大学 航空学院,陕西 西安 710072 |
| 摘要: |
| 采用工程有限元软件ANSYS建立含铆钉填充锪窝孔板有限元模型,计算了不含铆钉填充的锪窝孔边单侧扇形角裂纹、含铆钉填充净配合锪窝孔边单侧扇形角裂纹和含铆钉填充锪窝孔在不同干涉量下孔边单侧扇形角裂纹前缘的应力强度因子的值,分析了铆钉与锪窝孔干涉配合量对孔边裂纹前缘应力强度因子的影响规律,给出了铆钉与锪窝孔干涉配合时的最佳配合量及有效干涉量范围,为铆钉设计提供了参考数据和指导性建议,对于铆接结构设计具有重要的工程实用价值。 |
| 关键词:
锪窝孔
应力强度因子
有限元
角裂纹
干涉
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| Some Useful Results of Investigation on Stress Intensity Factors (SIFs) of Corner Crack at Rivet-Filled Countersunk Hole |
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| Xie Wei, Tu Shaowei, Huang Qiqing, Xie Yuanwang |
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| College of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| Sections 1 through 3 explain the investigation mentioned in the file，whose results we believe are usefuland whose core consists of: (1) we presented the finite element model for rivet-filled countersunk hole by using thelarge finite element software ANSYS; (2) we calculated SIFs of fanlike crack front of countersunk rivet hole respec-tively for the three cases of without rivet，with net fit rivet and with interference fit rivet; (3) we discussed theeffect of interference fit level between rivet and countersunk hole on SIFs of crack front; (4) the results，presentedin Figs. 6 through 9，and their analysis show preliminarily that the best interference fit level is 0. 7% and that theeffective interference fit range is 0. 5%～1. 1% for improving fatigue life. Section 4 gives in full the four prelimina-ry conclusions concerning the results of our investigation. |
| Key words:
computational geometry
crack propagation
fatigue of materials
finite element method
fits and toler-ances
mathematical models
rivets
schematic diagrams
stress intensity factors
three dimensional;corner crack
countersunk hole
interference
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| 收稿日期: 2011-09-08
修回日期:
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| DOI: |
| 基金项目: 国家自然青年科学基金(11102158)；高等学校创新引智计划(B07050)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、断裂与可靠性分析的研究。
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参考文献: |
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[1] 沈海军, 郭万林. 锪窝孔边扇形角裂纹应力强度因子的三维有限元分析. 航空学报, 2002, 23(2):106-110Shen Haijun, Guo Wanlin. 3D Finite Element Analysis of SIF of the Structure with Dimple Hole. Acta Aeronautica et Astonauti-ca Sinica, 2002, 23(2):106-110 (in Chinese)
[2] De Rijck J J M，Fawaz S A. Stress Intensity Factor Solutions for Countersunk Holes Subjected to Tension，Bending and PinLoading. Sixth Joint DoD/FAA/NASA Conference on Aging Aircraft, 2002
[3] John G Bakuckas Jr，Catherine A Bigelow，Paul W Tan. Recent Results for Stress-Intensity Factors Solutions for Cracks Grow-ing out of Fastener Holes. Fifth Joint DoD/FAA/NASA Conference on Aging Aircraft, 2001
[4] Chul Young Park, Grandt Jr Alten F. Effect of Load Transfer on the Cracking Behavior at a Countersunk Fastener Hole. Interna-tional Journal of Fatigue, 2007，(29):146-157
[5] 沈海军, 郭万林, 吕国志. 飞机谱载下铝合金锪窝孔结构腐蚀疲劳研究. 力学学报, 2003, 35(1): 21-24Shen Haijun，Guo Wanlin，Lv Guozhi. Corrosive Fatigue of Structures with Dimple Holes under Spectrum Loading. Acta Me-chanica Sinica, 2003, 35(1): 21-24 (in Chinese)
[6] 李 凯. 老龄飞机的疲劳损伤. 天津: 中国民航大学, 2005, 16-26Li Kai. The Fatigue Damage of Aging Aircraft. Tianjin: Civil Aviation University of China, 2005, 16-26 (in Chinese)
[7] 王 锋, 黄其青, 殷之平. 三维裂纹应力强度因子的有限元计算分析. 航空计算技术, 2006, 36(3):125-127Wang Feng，Huang Qiqing，Yin Zhiping. Analysis of Emulational Limited Element Method for the Three-Dimensional Stress In-tensity Factors. Aeronautical Computer Technique, 2006, 36(3): 125-127 (in Chinese)
[8] 沈成康. 断裂力学. 上海: 同济大学出版社, 1996Shen Chengkang. Fracture Mechanics. Shanghai: Press of Tongji University, 1996 (in Chinese) |
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