| 复合材料边界元素法研究 |
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| 引用本文： | 于卫东,单辉祖.复合材料边界元素法研究[J].复合材料学报,1996,13(2):71-75. |
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| 作者姓名： | 于卫东 单辉祖 |
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| 作者单位： | [1]铁道部科学研究院机辆所 [2]北京航空航天大学 |
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| 摘 要： | 边界元法是一种迅速发展的数值解法.本文研究了在复合材料层合板中运用平面二次边界元法的有关问题.首先,讨论了将层合板等效为一般正交各向异性单层板的方法;其次,给出了偏轴情况下的基本解,研究了直线型二次边界元偏轴影响系数的解析计算以及域内应力表达式;最后对算例进行了计算,所得结果与相应的解析解和有限元相符甚好.
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| 关 键 词： | 复合材料 层合板 边界元素法 |
| 收稿时间： | 1993-12-31 |
| 修稿时间： | 1995-07-05 |
STUDY OF BOUNDARY ELEMENT METHOD FOR COMPOSITE MATERIALS |
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| Yu Weidong.STUDY OF BOUNDARY ELEMENT METHOD FOR COMPOSITE MATERIALS[J].Acta Materiae Compositae Sinica,1996,13(2):71-75. |
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| Authors: | Yu Weidong |
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| Affiliation: | 1. China Academy of Railway Sciences, Beijing 100081;2. Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Abstract: | BEM is a kind of numerical method developing rapidly.Some problems about the application of plane orthotropic boundary elements to more general composite laminates are studied in this paper.They include the equivalent single plate of laminate,the off-axis fundamental solution,the analytic calculation of influence coefficients of straight high-order boundary elements,and the expression of stresses at any interior point.The examples show that the results of BEM are consistent with the analytic solutions and the results of FEM. |
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| Keywords: | composite materials laminates boundary element method |
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