干涉配合对复合材料单钉连接疲劳寿命影响研究

刘辉; 赵美英; 王文智

doi:10.13433/j.cnki.1003-8728.2015.0329

干涉配合对复合材料单钉连接疲劳寿命影响研究

doi: 10.13433/j.cnki.1003-8728.2015.0329

1.
西北工业大学航空学院, 西安 710072

详细信息

作者简介:
刘辉（1988-），硕士研究生，研究方向为飞行器结构设计，441991090@qq.com；赵美英（1962-），教授，博士生导师，zhaomeiying@nwpu.edu.cn

刘辉（1988-），硕士研究生，研究方向为飞行器结构设计，441991090@qq.com；赵美英（1962-），教授，博士生导师，zhaomeiying@nwpu.edu.cn

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出版历程
- 收稿日期: 2013-09-04
- 刊出日期: 2015-03-05

Study on the Influences of Interference Fit on the Fatigue Lives of One-fastener Composite Structures

1.
School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072

摘要

摘要: 利用ABAQUS软件中的UMAT子程序建立了基于三维Hashin判据、Camonho参数退化准则与两种渐进疲劳损伤模型的复合材料本构模型。对未采用干涉配合的复合材料单钉连接结构疲劳寿命试验进行了数值模拟，所得寿命预测值与试验结果吻合较好，证明了该分析方法和所编写程序的正确性。在此基础上，对采用干涉配合的复合材料连接结构疲劳寿命进行了预测。结果表明：当采用0.8%~1.0%干涉量的干涉配合时复合材料连接结构的疲劳寿命约可以提高到原来的3倍。
- 复合材料 /
- 干涉配合 /
- 单钉连接 /
- 疲劳寿命 /
- 损伤累积
Abstract: This paper establishes a constitutive model of composite structure with UMAT subroutine of ABAQUS based on three dimensional Hashin invalidation rules and two kinds of fatigue degradation models. Some fatigue tests of composite structures with one-fastener joint without interference fit are simulated, the predicted fatigue lives agree well with the test results which verify the correctness of proposed model and analying program. Consequently, the fatigue life of a one-fastener composite structure with different interference fits is predicted by the present method and the results indicate that the fatigue lives of composites structures can be increased by three times of its original ones with the interference fit level of 0.8% to 1.0%.
- ABAQUS /
- composites structures /
- computer simulation /
- constitutive models /
- efficiency

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参考文献(11)

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