| 非几何对称试件启裂前应力状态的实验研究 |
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| 引用本文： | 郎福元,周爱细,芮执元. 非几何对称试件启裂前应力状态的实验研究[J]. 兰州理工大学学报, 2001, 27(4): 110-113 |
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| 作者姓名： | 郎福元 周爱细 芮执元 |
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| 作者单位： | 甘肃工业大学机电工程学院, |
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| 基金项目： | 甘肃省自然科学基金（85－61－04） |
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| 摘 要： | 从裂纹技术的需要出发，对几何不对称试件进行了启裂前应力状态变化的光弹性实验力学研究，观察有切口试件的应力场变化情况，结果表明，试件在受力后启裂前的应力状态基本上是对称的
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| 关 键 词： | 裂纹技术 断裂设计 光弹实验 切口 应力变化 |
| 文章编号： | 1000-5889(2001)04-0110-04 |
| 修稿时间： | 2000-10-14 |
Experimental study of conditions within geometrically asymmetric samples stress before cracked |
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| LANG Fu-yuan,ZHOU Ai-xi,RUI Zhiyuan. Experimental study of conditions within geometrically asymmetric samples stress before cracked[J]. Journal of Lanzhou University of Technology, 2001, 27(4): 110-113 |
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| Authors: | LANG Fu-yuan ZHOU Ai-xi RUI Zhiyuan |
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| Abstract: | In order to meet the requirement of crack-technique, photoelastic method of experimental-dy- namics is employed to investigate the variation of stress of the samples which are geometrically unsymmet- rical before they commence crack. Besides, the variation of the stress within samples with notch is ob- served also. It is shown that the samples' stress is symmetrical at large when they are under the loading before they start to crack. |
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| Keywords: | crack-technique fracture design photoelastic experiment V-notch stress variation |
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