| 基于ANSYS的二维断裂参量的计算及分析 |
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| 引用本文： | 钱桂安,王茂廷,王莲. 基于ANSYS的二维断裂参量的计算及分析[J]. 机械强度, 2004, 26(Z1): 205-206 |
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| 作者姓名： | 钱桂安 王茂廷 王莲 |
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| 作者单位： | 辽宁石油化工大学,机械工程学院,抚顺,113001 |
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| 摘 要： | 通过算例 ,用大型有限元分析软件ANSYS对二维断裂参量进行计算和分析。采用 1/4节点单元模拟裂纹尖端的奇异性 ,自由划分网格。结果与理论值进行比较 ,证明ANSYS解的合理性和断裂参量之间的相互关联性。为断裂参量的计算提供准确而又方便的方法
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| 关 键 词： | 有限单元法 断裂参量 应力强度因子 J积分 能量释放率 |
| 修稿时间： | 2004-04-30 |
CALCULATION AND ANALYSIS OF TWO DIMENSION FRACTURE PARAMETERS USING ANSYS |
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| QIAN GuiAn WANG MaoTing WANG Lian. CALCULATION AND ANALYSIS OF TWO DIMENSION FRACTURE PARAMETERS USING ANSYS[J]. Journal of Mechanical Strength, 2004, 26(Z1): 205-206 |
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| Authors: | QIAN GuiAn WANG MaoTing WANG Lian |
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| Abstract: | Mostly, the three fracture parameters were calculated by finite element method. Both two-dimension specimen and three-dimension specimen were studied by using the software of ANSYS. Quadratic element was applied to simulate singularity around the crack tip, and the model was meshed freely. It proved that the results of ANSYS are approximate to that of theoretical estimation formula and there are some internal connections among the three fracture parameters .It is a useful tool in calculation of fracture parameters, and provides an accurate and convenient method in fracture design. |
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| Keywords: | Finite element method Fracture parameter Stress intensity factors J-integral Energy release rate |
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