| 压力容器接管区裂纹尖端应力强度因子的测定 |
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| 引用本文： | 崔建华.压力容器接管区裂纹尖端应力强度因子的测定[J].合肥工业大学学报(自然科学版),1999(1). |
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| 作者姓名： | 崔建华 |
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| 作者单位： | 安徽建筑工业学院基础部 |
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| 基金项目： | 安徽省教委自然科学基金 |
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| 摘 要： | 针对压力容器接管区处于高应变梯度区的特征，用与压力容器接管的应变分布相类似的异形板来模拟接管，对不同孔径的异形板进行应力应变场的光弹性分析，给出高应变梯度区的应力分布状态，同时利用权函数理论，对裂纹尖端附近的应力强度因子进行测定，为裂纹疲劳扩展分析提供依据
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| 关 键 词： | 压力容器 光弹性分析 裂纹 应力强度因子 |
STRESS INTENSITY FACTORS AROUND CRACK AT THE JUNCTION OF PRESSURE VESSEL SHELL AND NOZZLE |
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| Cui Jianhua.STRESS INTENSITY FACTORS AROUND CRACK AT THE JUNCTION OF PRESSURE VESSEL SHELL AND NOZZLE[J].Journal of Hefei University of Technology(Natural Science),1999(1). |
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| Authors: | Cui Jianhua |
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| Institution: | Anhui Institute of Architecture |
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| Abstract: | Based on the characteristic of high strain gradients at the junction between pressure vessel and nozzle, the photoelastic analysis of stress strain was carried out by using the different diameter of the special shape plate of simulating nozzle. The stress distribution in high strain gradient region is presented, and stress intensity factors around crack are obtained according to weight function theory. This paper provides the foundation for crack fatigue growth analysis in fracture mechanics. |
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| Keywords: | pressure vessel photoelastic analysis crack stress intensity factors |
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