| 缝纫/RFI层合板单钉连接性能计算研究 |
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| 引用本文： | 陈纲,王栋,郦正能,寇长河.缝纫/RFI层合板单钉连接性能计算研究[J].强度与环境,2005,32(4):6-11,5. |
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| 作者姓名： | 陈纲 王栋 郦正能 寇长河 |
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| 作者单位： | 北京航空航天大学飞机设计研究所,北京,100083 |
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| 基金项目： | 基金项目：凡舟基金资助项目（20020509） |
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| 摘 要： | 本文建立了三维有限元分析模型，对缝纫层合板的单钉连接性能进行了理论分析，模拟了钉孔受挤压边缘附近一些典型的针脚位置情况．计算得到钉孔周同的平均径向应力和层间应力分布；并且应用三维点应力损伤判据，得到各种典型针脚位置情况下的缝纫层合板初始挤压破坏强度。研究结果表明，计算结果和试验结果吻合较好，证明该模型能有效地分析缝纫层合板单钉连接性能。且不同针脚位置对缝纫层合板机械连接性能确有重要的影响。
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| 关 键 词： | 缝纫复合材料 缝纫针脚位置 有限元计算 |
| 文章编号： | 1006-3919（2005）04-0006-06 |
| 收稿时间： | 2004-09-27 |
| 修稿时间： | 2005-02-01 |
Numerical study on property of mechanically fastened joints in stitched laminates |
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| CHEN Gang,WANG Dong,LI Zheng-neng,KOU Chang-he.Numerical study on property of mechanically fastened joints in stitched laminates[J].Structure & Environment Engineering,2005,32(4):6-11,5. |
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| Authors: | CHEN Gang WANG Dong LI Zheng-neng KOU Chang-he |
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| Abstract: | A three-dimensional finite element model was developed for predicting the stress distribution near the edge of single joint for some typical stitching node position.Hashin's three-dimensional failure criterion is used to predict damage onset and type within a ply,and also,the ultimate strength of the joint.A good agreement between test results and numerical predictions is obtained.The numerical results also show that the stitching node position has significant effect on the bearing strength of stitched laminates. |
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| Keywords: | stitched laminates stitching node position finite element model |
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