| 飞机蒙皮埋头钉孔裂纹扩展有限元分析 |
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| 引用本文： | 王冲,鲁统利.飞机蒙皮埋头钉孔裂纹扩展有限元分析[J].上海工程技术大学学报,2011,25(2):117-120. |
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| 作者姓名： | 王冲 鲁统利 |
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| 作者单位： | 上海耐超航空技术有限公司,上海201199上海交通大学机械与动力工程学院,上海200240上海交通大学机械与动力工程学院,上海,200240 |
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| 摘 要： | 利用扩展有限元方法研究了飞机外蒙皮埋头钉孔划窝角度和深度对蒙皮裂纹扩展寿命的影响,对工程常用的标准埋头钉孔构型进行了裂纹扩展分析.分析结果表明,埋头钉孔划窝会减少蒙皮结构的寿命,但随着蒙皮厚度增加,划窝的影响逐渐减小.分析结论和数据可用于对蒙皮结构寿命工程估算的修正.
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| 关 键 词： | 飞机蒙皮 埋头钉孔 裂纹扩展 扩展有限元法 |
Analysis of Crack Growth at Countersink Hole of Airplane Skin Based on FEM |
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| WANG Chong,LU Tong-li.Analysis of Crack Growth at Countersink Hole of Airplane Skin Based on FEM[J].Journal of Shanghai University of Engineering Science,2011,25(2):117-120. |
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| Authors: | WANG Chong LU Tong-li |
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| Affiliation: | 1.Shanghai Naichao Aerospace Technology Ltd.,Shanghai 201199,China;2.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | Based on XFEM method,the influence of the countersink angle and depth on the crack growth speed of airplane skin was studied,the crack growth analysis of standard countersink hole patterns were performed by using XFEM.The result shows that rivet hole of countersink will reduce the life of the skin structure and this influence will be weakened with the increasing thickness of the skin.The result can be used to correct the life prediction of skin structure in engineering. |
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| Keywords: | airplane skin countersink hole crack growth XFEM（Extended Finite Element Method） |
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