| 具有单元分裂功能的间断有限元方法 |
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| 引用本文： | 邱峰,丁桦. 具有单元分裂功能的间断有限元方法[J]. 力学与实践, 2006, 28(4): 54-59 |
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| 作者姓名： | 邱峰 丁桦 |
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| 作者单位： | 中国科学院力学研究所工程科学部,北京,100080;中国科学院力学研究所工程科学部,北京,100080 |
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| 摘 要： | 介绍一种能够模拟材料开裂过程的有限元方法,该方法引入单元分裂和界面分离技术,结合具体的破坏准则,模拟材料变形中的破坏,同时还可以方便地处理材料中任意分布的界面结构．以三点弯曲实验为例,通过数值模拟结果和实验数据的比较,验证了该方法的适用性．
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| 关 键 词： | 有限元 界面 单元分裂 动态松弛 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2006-02-17 |
ELEMENT SPLITTING TECHNIQUE IN DISCONTINUOUS FINITE ELEMENT METHOD |
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| QIU Feng,DING Hua. ELEMENT SPLITTING TECHNIQUE IN DISCONTINUOUS FINITE ELEMENT METHOD[J]. Mechanics and Engineering, 2006, 28(4): 54-59 |
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| Authors: | QIU Feng DING Hua |
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| Affiliation: | Division of Engineering Sciences, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | An element splitting technique is introduced into the discontinuous finite element method which admits discontinuity between elements by using joint elements. The method can be applied to simulate the fracture of materials not only at the interfaces but also in the material mass based on a given criteria. The validation of this method is shown by comparing the numerical calculation with the 3-point bending experiment. |
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| Keywords: | FEM interface splitting of element dynamic relaxation |
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