| 压力容器接管区应力场有限元分析 |
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| 引用本文： | 崔建华.压力容器接管区应力场有限元分析[J].安徽建筑工业学院学报,2009,17(4):1-3. |
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| 作者姓名： | 崔建华 |
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| 作者单位： | 安徽建筑工业学院土木工程学院,合肥,230022 |
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| 基金项目： | 安徽省教育厅自然科学重点科研计划项目资助 |
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| 摘 要： | 针对压力容器接管区局部高应力高应变区的状态和裂纹的断裂规律特征,对多种孔径的异型板应力应变场应用弱协调元,建立单元间位移弱连续条件的协调有限元模型,不需要应力满足平衡条件,因此可以解决常规有限元难以适应的奇异性领域.本文分别就不带裂纹和带有裂纹的异型板进行应力分类数值分析,为压力容器接管部位的设计和裂纹疲劳扩展分析提供了可靠依据.
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| 关 键 词： | 压力容器 协调元 弱连续 有限元 |
Analysis of the finite element method of stress field for simulating pressure vessel nozzles |
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| CUI Jian-hua.Analysis of the finite element method of stress field for simulating pressure vessel nozzles[J].Journal of Anhui Institute of Architecture(Natural Science),2009,17(4):1-3. |
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| Authors: | CUI Jian-hua |
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| Affiliation: | CUI Jian-hua(School of Civil Engineering,Anhui University of Architecture,Hefei 230022,China) |
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| Abstract: | According to high strain gradients characteristic at the junction between pressure vessel and nozzle,based on simulating shape plate of pressure vessel nozzle,weak-conforming element models are established for two types of special shape plates,which satisfied weak continuous conditions between elements.The weak-conforming element methods do not need satisfy stress equilibrium conditions.It can solve the conventional finite element difficult to adapt to the singularity of the field.The stresses are obtained ... |
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| Keywords: | pressure vessel conforming element weak continuous conditions FEM |
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