| 一个新的等参数奇异单元 |
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| 引用本文： | 何文军,丁浩江. 一个新的等参数奇异单元[J]. 宁波大学学报(理工版), 1989, 0(2) |
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| 作者姓名： | 何文军 丁浩江 |
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| 作者单位： | 宁波大学，浙江大学 |
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| 摘 要： | 本文推导得到了一个新的等参数奇异单元,它仍然是四边形四分之一节点奇异元。数值实验表明,它要比常用的四边形四分之一节点奇异元精度更好,使用这种单元可以使断裂问题的有限元计算效果更好。在计算过程中还利用到改进等参变换。
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| 关 键 词： | 有限元法 断裂 应力强度因子 |
A New Singular Element in Fracture Mechanics |
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| He Wenjun,Ding Haojiang Ningbo University Zhejiang University. A New Singular Element in Fracture Mechanics[J]. Journal of Ningbo University(Natural Science and Engineering Edition), 1989, 0(2) |
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| Authors: | He Wenjun Ding Haojiang Ningbo University Zhejiang University |
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| Affiliation: | He Wenjun;Ding Haojiang Ningbo University Zhejiang University |
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| Abstract: | A new singular element has been developed by using an Improved Isopar. ametric Transformation.Numerical results show that the new element can solve the fracture problem more accurately than the widely used quater-node quadrilateral element and the new elemnt can be easily used in the isoparam- etric FEM programs also. |
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| Keywords: | Finite element method Fracture Stress intensity factor |
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