| 304不锈钢紧凑拉伸裂尖应力强度因子有限元分析 |
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| 引用本文： | 韦尧兵,刘俭辉,王风涛.304不锈钢紧凑拉伸裂尖应力强度因子有限元分析[J].机械与电子,2011(7):24-26. |
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| 作者姓名： | 韦尧兵 刘俭辉 王风涛 |
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| 作者单位： | 兰州理工大学机电工程学院,甘肃,兰州,730050 |
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| 摘 要： | 304不锈钢结构在工程应用中经常发生疲劳断裂.利用有限元数值模拟方法对304不锈钢制成的紧凑拉伸试样进行二维分析,通过J积分计算应力强度因子.使问题满足平面应力条件,通过对数据处理,分析载荷大小和裂纹长度对应力强度因子的影响.把有限元计算的结果和经验公式对比,分析误差及有限元方法的可行性.
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| 关 键 词： | 304不锈钢 紧凑拉伸试样 J积分 应力强度因子 有限元方法 |
Stress-intensity Factors Analysis of 304 Stainless Steel CT of Crack Tip |
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| WEI Yao-bing,LIU Jian-hui,WANG Feng-tao.Stress-intensity Factors Analysis of 304 Stainless Steel CT of Crack Tip[J].Machinery & Electronics,2011(7):24-26. |
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| Authors: | WEI Yao-bing LIU Jian-hui WANG Feng-tao |
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| Affiliation: | (School of Mechanical and Electronical Engineering,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | 304 stainless steel frequently in engineering applications.Finite element numerical modeling is used to make two-dimensional analysis of compact tension specimens made by 304 stainless steel,calculating stress intensity factors by J integral.Making the specimens meet the plane stress conditions,by data processing,analyze the effects on stress-intensity factors of load magnitude and crack length.Comparing the finite element results and empirical formula,analyze errors between the two and formulate the feasibility of the finite element method in this case. |
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| Keywords: | 304 stainless steel compact tension J-integral specimen stress-intensity factors the finite element method |
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