| 复合材料双曲度大网格高精度单元研究 |
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| 引用本文： | 王富生,谯盛军,华林,岳珠峰.复合材料双曲度大网格高精度单元研究[J].复合材料学报,2012,0(2):135-144. |
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| 作者姓名： | 王富生 谯盛军 华林 岳珠峰 |
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| 作者单位： | 西北工业大学 力学与土木建筑学院 先进材料测试中心, 西安 710129 |
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| 基金项目： | 博士点基金(N6CJ0001);国家高科技研究发展专项(863计划)项目(2007AA04Z404);高等学校学科创新引智计划项目(B07050) |
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| 摘 要： | 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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| 关 键 词： | 复合材料双曲度 筋条 大网格 高精度 自编单元 |
| 收稿时间： | 2011-03-17 |
Research on composite doubly-curved element with big grid and high precision |
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| WANG Fusheng, QIAO Shengjun, HUA Lin, YUE Zhufeng.Research on composite doubly-curved element with big grid and high precision[J].Acta Materiae Compositae Sinica,2012,0(2):135-144. |
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| Authors: | WANG Fusheng QIAO Shengjun HUA Lin YUE Zhufeng |
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| Affiliation: | Advanced Material Testing Center, School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710129, China |
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| Abstract: | High precision calculation of double-curved composite was achieved by using programming 4-node and 8-node elements, which is an extension of 4-node Timoshenko laminate beam and 8-node shell element theory. It is found that the use of 8-node element achieves a more accurate result. However, the use of 4-node element is more effective since it can save much computation time, which is more applicable for engineering computation. The dimension of the mesh of stiffener has little influence on the precision of the calculation result. The present work can be applied in designing and analyzing composite double-curved structure. |
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| Keywords: | composite with double-curved structure stiffener big grid high precision programming element |
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