| 压剪条件下缝面正应力对裂缝状态和扩展的影响 |
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| 引用本文： | 周瑞忠,刘光延.压剪条件下缝面正应力对裂缝状态和扩展的影响[J].华侨大学学报(自然科学版),1990,11(4):382-388. |
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| 作者姓名： | 周瑞忠 刘光延 |
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| 作者单位： | 福州大学，华侨大学 |
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| 摘 要： | 本文从压剪缝面的基本力学关系和裂面传剪,裂面传压效应的实验工作入手,指出压剪条件下缝面的正应力对裂缝状态和扩展具有重要的影响.提出了对压剪裂缝四种状态下考虑缝面正应力影响的计算公式,并将计算结果和电测、激光散斑的同步实验进行了验证.
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| 关 键 词： | 裂缝 压剪 正应力 剪应力 散斑实验 |
The Effect of Normal Stress of Crack Surface on the State of the Crack and Its Expansion under Press-Shear Condition |
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| Zhou Ruizhong.The Effect of Normal Stress of Crack Surface on the State of the Crack and Its Expansion under Press-Shear Condition[J].Journal of Huaqiao University(Natural Science),1990,11(4):382-388. |
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| Authors: | Zhou Ruizhong |
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| Institution: | Zhou Ruizhong (Fuzhou University)Liu Guangting (Huaqiao University) |
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| Abstract: | To begin with the basic mechanical properties of press-shear crack surface and the laboratory work on the effect of transmitting shear and press, this paper points out firstly that the normal stress of crack surface affects greatly the cracking state and its expansion under press-shear condition;and secondly,it poses a computing formula considering the effect of crack surface normal stress under four states of press-shear crack;and finally,it compares the computed results with the results from electric measurement and laser spec- kle test. |
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| Keywords: | pressure-shear crack normal stress shear stress affact speckle test |
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