| 复合材料层合板接触损伤问题的分析 |
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| 引用本文： | 胡伟平,张行,孟庆春.复合材料层合板接触损伤问题的分析[J].复合材料学报,2007,24(1):151-157. |
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| 作者姓名： | 胡伟平 张行 孟庆春 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院 固体力学研究所, 北京 100083 |
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| 摘 要： | 将连续介质损伤力学的分析计算方法与复合材料层合板无损伤接触问题的分析相结合, 分析了层合板在接触载荷作用下的损伤问题。采用逆解法得到复合材料层合板无损伤接触问题的解。在进行接触损伤分析时, 考虑到实际应用中层合板的层间相对容易发生损伤, 同时为了简单起见, 不计复合材料铺层的损伤演化, 只计层间胶层的损伤, 并将层间胶层的损伤演化视为各向同性。通过胶层材料的疲劳性能实验曲线拟合得到损伤演化参数。采用附加载荷法与迭代法求解层合板接触损伤分析时应力场与损伤场的互耦问题, 得到了层间胶层的损伤度分布及应力分布。计算结果显示, 该方法收敛性好, 求解简单。
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| 关 键 词： | 层合板 接触损伤 附加载荷法 |
| 文章编号： | 1000-3851（2007）01-0151-07 |
| 收稿时间： | 2006-03-09 |
| 修稿时间： | 2006-03-092006-05-12 |
Analysis on contact damage problem of composite plates |
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| HU Weiping,ZHANG Xing,MENG Qingchun.Analysis on contact damage problem of composite plates[J].Acta Materiae Compositae Sinica,2007,24(1):151-157. |
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| Authors: | HU Weiping ZHANG Xing MENG Qingchun |
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| Affiliation: | Institute of Solid Mechanics, School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | A continuity damage mechanics method, combined with analysis on the contact problem of non-damaged composite plates, was introduced into the analysis on the contact damage problem of the composite plates under static contact loading. The contact problem of non-damaged composite plates was solved by the inverse method. Considering that the interlaminar material is easy to be damaged in engineering application and to obtain a simple mechanics model firstly, just count the damage of interlaminar glue layer during the analysis on contact problems. The damage development of the glue layer was supposed to be isotropic. The parameters of glue damage development were obtained by the fitting curves of fatigue experiments. The approaches of additional loading and the iteration were applied to the analysis of interlaminar damage and delamination problems of the composite plates under static contact loading. The damage distribution and stress distribution of the glue layers were obtained. The result shows that the above method has good behavior of convergence, and is convenient for application. |
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| Keywords: | composite plates contact damage additional loading method |
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