| 接管内拐裂纹K_I的光弹测定 |
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| 引用本文： | 徐一耿,蔡.接管内拐裂纹K_I的光弹测定[J].应用力学学报,1992(4). |
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| 作者姓名： | 徐一耿 蔡 |
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| 作者单位： | 浙江丝绸工学院
(徐一耿)，浙江工学院(蔡(土予)涛) |
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| 摘 要： | 接管内拐角部位裂纹的断裂力学分析是很有实际意义的.本文利用三维光弹性冻结切片法对K_I沿平板—接管及圆柱—接管二种模型内拐角裂纹前缘的分布进行了测定,同时,利用所得的实验结果对某些疲劳裂纹扩展现象进行了定性的解释.
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| 关 键 词： | 应力强度因子 光弹法 拐角裂纹 |
Photoelastic Investigations of Ki Distributions of Nozzle Corner Cracks |
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| Xu Yigeng.Photoelastic Investigations of Ki Distributions of Nozzle Corner Cracks[J].Chinese Journal of Applied Mechanics,1992(4). |
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| Authors: | Xu Yigeng |
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| Institution: | Xu Yigeng(Zhejiang Silk Engineering College) Lai Shutao(Zhejiang Institute of Technology) |
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| Abstract: | The mechanical investiments about nozzle corner cracks are of great importance. Photoelastic researches on K_(?) distributions of plate-nozzle corner cracks and cylinder nozzle corner cracks using the three-dimensional frozen photoelastic method are presented in this paper. Meanwhile, the results obtained here are used to explain qualitatively the phenomena of fatigue crack growth observed before. |
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| Keywords: | stress intensity factor photoelastic method nozzle corner crack |
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