| 有限元计算中应力集中问题解决方法 |
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| 引用本文： | 赵健,张国智.有限元计算中应力集中问题解决方法[J].航空制造技术,2009(16). |
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| 作者姓名： | 赵健 张国智 |
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| 作者单位： | 1. 郑州航空工业管理学院
2. 新乡学院 |
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| 基金项目： | 河南省教育厅自然科学研究计划项目 |
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| 摘 要： | 针对应力集中问题,研究有限元计算中优化模型的方法.综合分析具有应力集中孔薄板在不同工况下(单向拉伸、双向拉伸、拉压复合)的不同单元密度和单元质量,提出了优化有限元模型的方法.此外,对某旋转机械中转盘的切向应力进行了计算,与子模型有限元方法的计算结果进行比较,验证了提出的优化有限元模型方法的合理性.
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| 关 键 词： | 应力集中 有限元模型 单向拉伸 双向拉伸 拉压复合 子模型 |
Solving Method for the Stress Concentration Problem in FEA |
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| Zhao Jian,Zhang Guozhi.Solving Method for the Stress Concentration Problem in FEA[J].Aeronautical Manufacturing Technology,2009(16). |
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| Authors: | Zhao Jian Zhang Guozhi |
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| Abstract: | The method of optimizing the finite element model (FEM) for the stress concentration is studied. Through comparing the results of different element density and element quality of the sheet with hole under the load (simple tension, biaxial tension, tension and compression), the method of optimizing the finite element model is proposed. Moreover, tangential stress of rotor plate of the rotary machine with the method is proposed in the paper, which is verified through comparing the results of the rotor plate w... |
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| Keywords: | Stress concentration FEM Simple tension Biaxial tension Tension and compression Sub-modeling |
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