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复合材料双曲度大网格高精度单元研究

, PP. 135-144

Keywords: 复合材料双曲度,筋条,大网格,高精度,自编单元

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Abstract:

基于四节点Timoshenko层合梁理论和八节点薄壳单元相关理论,通过自编四节点板单元和八节点壳单元,实现了加筋前后双曲度复合材料薄壳单元的大网格高精度计算。结果表明:八节点单元精度稍高,但四节点单元分析的时间更短,因而效率更高,更具有工程实用性;筋条网格尺寸大小对计算精度影响小。研究成果可用于大规模复合材料双曲度结构设计和分析。

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