| 单钉机械连接孔边应力及失效分析 |
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| 引用本文： | 李朝光,杜龙,姜亚娟,徐丹.单钉机械连接孔边应力及失效分析[J].洪都科技,2014(3):38-43. |
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| 作者姓名： | 李朝光 杜龙 姜亚娟 徐丹 |
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| 作者单位： | 中航工业洪都,江西南昌,330024 |
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| 摘 要： | 采用非线性Gap单元建立了复合材料层合板单钉连接有限元分析模型,并对五种不同铺层比例的层合板进行了计算,同时,还运用Hoffman失效判据对层合板进行了失效分析.根据计算结果分析了铺层比例对孔边应力分布、钉孔接触力分布和孔边失效系数的影响,得出最优铺层比例方案,其结论对复合材料层合板单钉机械连接设计具有一定的工程参考价值.
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| 关 键 词： | 机械连接 孔边应力 钉孔接触力 铺层比例 失效分析 |
Stress and Failure Analysis around the Hole of Single-bolt Mechanical Joining |
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| Li Chaoguang,Du Long,Jiang Yajuan,Xu Dan.Stress and Failure Analysis around the Hole of Single-bolt Mechanical Joining[J].Hongdu Science and Technology,2014(3):38-43. |
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| Authors: | Li Chaoguang Du Long Jiang Yajuan Xu Dan |
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| Institution: | (AVIC Hongdu Aviation Industry Group, Nanchang, Jiangxi, 330024) |
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| Abstract: | A finite element model of composite plywood single-boh joining was built by non-linearity Gap element, and calculation was made for five kinds of plywood with different laminating seale. Meanwhile, failure analysis was performed for plywood by using Hoffman failure criterion. The paper analyzes the effect of laminating scale on stress distribution around hole, bolt hole contact force distribution and failure coefficient around hole based on calculation results, and acquires the optimal laminating scale plan. The conclusion has certain engineering reference value in composite plywood single-boh mechanical joining design. |
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| Keywords: | mechanieal joining stress around hole bolt hole eontaet force laminating scale failure analysis |
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