T300/QY8911单向板湿热性能模拟与损伤分析

齐忠新; 燕瑛; 刘玉佳; 何明泽

T300/QY8911单向板湿热性能模拟与损伤分析

北京航空航天大学航空科学与工程学院, 北京 100191

基金项目: 国家973计划资助项目(2011CB606105)

详细信息

中图分类号: V214.8
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出版历程
- 收稿日期: 2011-04-14
- 网络出版日期: 2012-07-30

Hygrothermal properties simulation and damage analysis of T300/QY8911 undirectional laminates

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 测试了不同湿热条件下T300/QY8911单向板的弯曲性能,建立了湿热条件下复合材料单向板的弯曲有限元模型,模拟了湿热条件下T300/QY8911单向板的弯曲性能,开发了复合材料损伤演化仿真模块,对湿热条件下T300/QY8911单向板弯曲损伤演化过程进行了仿真.结果表明:湿热条件下T300/QY8911单向板的弯曲模量具有较高的保持率,弯曲强度随湿热条件的变化差异较大,模量和强度的模拟结果与试验值的误差分别小于6%和2%,建立的弯曲有限元模型,能够比较准确地预测不同湿热条件下复合材料单向板的弯曲性能.
- 单向板 /
- 湿热条件 /
- 弯曲性能 /
- 损伤演化 /
- 渐进失效
Abstract: Flexural properties of T300/QY8911 undirectional laminates were tested under different hygrothermal conditions. Finite element models of composite undirectional laminates under hygrothermal conditions were built. The flexural properties of T300/QY8911 undirectional laminates tested in experimentation were simulated. Plus, a damage evolution simulation module of composite was developed. The integrated damage evolution process of T300/QY8911 undirectional laminates under hygrothermal conditions was simulated. Results show that, the flexural modulus of T300/QY8911 undirectional laminates remains unchanged under different hygrothermal conditions, but the flexural strength changes greatly with conditions. For flexural modulus, the error between simulation values and test results is less than 6%, and for flexural strength, it is less than 2%. The finite element models can predict flexural properties of composite undirectional laminates under different hygrothermal conditions relative exactly.
- undirectional laminates /
- hygrothermal conditions /
- flexural properties /
- damage evolution /
- progressive failure

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参考文献(13)

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