| 高精度四节点四边形流形单元 |
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| 引用本文： | 蔡永昌,廖林灿,张湘伟. 高精度四节点四边形流形单元[J]. 应用力学学报, 2001, 18(2): 75-80 |
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| 作者姓名： | 蔡永昌 廖林灿 张湘伟 |
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| 作者单位： | 1. 重庆大学
2. 汕头大学 |
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| 基金项目： | 广东省自然科学基金资助项目(994396) |
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| 摘 要： | 基于数值流形方法的四点四边形流形单元在物理覆盖上使用高阶覆盖位移函数能够得到高精度的数值结果，且可以在求解区域的不同地方混合使用各阶覆盖函数来提高求解效率，具有编程 和前后处理简单等优点，弥补了有限元的不足，计算结果表明，数值解与理论解吻合。
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| 关 键 词： | 流形方法 连续体 有限元法 四节点四边形 岩体 |
| 文章编号： | 1000-4939(2001)02-0075-06 |
| 修稿时间： | 1999-06-18 |
The Plate and Shell of Structural Dynamic Analysis with Different Elastic Modu1i of Material |
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| Cai Yongchang Liao Lincan Zhang Xiangwei. The Plate and Shell of Structural Dynamic Analysis with Different Elastic Modu1i of Material[J]. Chinese Journal of Applied Mechanics, 2001, 18(2): 75-80 |
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| Authors: | Cai Yongchang Liao Lincan Zhang Xiangwei |
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| Affiliation: | Cai Yongchang1 Liao Lincan1 Zhang Xiangwei 2 |
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| Abstract: | The high solution precison can be aquired by using the high-order cover displac e ment function of the Numerical Manifold Method (NMM) based on the quadrnodel-q uadrangle element. The solution efficiency can also be improved by using variab le order cover function at the different regions of a structure.Comparing with using the FEM, the advantages of easy programming and simple preprocessing and p ostprocessing by the NMM are clearly shown. The computational results show tha t the numerical results are in good agreement with theoreticl solutions. |
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| Keywords: | manifold method continuous-body finite element method. |
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