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首页> 外文会议>International Conference on Mechanical Engineering and Mechanics vol.1; 20051026-28; Nanjing(CN) >Thermal and Mechanical Analysis of Composite Laminated Structures
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Thermal and Mechanical Analysis of Composite Laminated Structures

机译：复合材料层合结构的热力学分析

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摘要

A multilayered shell element with relative degrees of freedom is presented for the thermal and mechanical analysis of composite laminated structures. The whole analysis process are performed by the same finite element mesh. The element is based on and easily connected with 3D solid element. This provides the possibility to model the region of concern with refined 3D solid finite elements while the unimportant region with coarse multilayered shell elements. A post-processing method for exactly computing transverse shear and normal stresses in composite cylindrical shells is adopted. The accuracy of the method is verified by two examples. A composite cylindrical shell with a cutout with and without reinforcement is analysed by the present method. The results show that the reinforcement may cause interlaminar stresses around the cutout.
机译：提出了具有相对自由度的多层壳单元，用于复合层压结构的热和机械分析。整个分析过程由相同的有限元网格执行。元素基于3D实体元素并易于连接。这提供了用精制的3D实体有限元对关注区域进行建模，而不重要的区域使用粗糙的多层壳元素进行建模的可能性。采用了一种后处理方法来精确计算复合圆柱壳中的横向剪切力和法向应力。通过两个例子验证了该方法的准确性。通过本方法分析了具有切口和不具有加强件的复合圆柱壳。结果表明，钢筋可能会在切口周围引起层间应力。

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