| 岩石的单轴拉伸及其本构模型 |
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| 引用本文： | 金丰年,钱七虎. 岩石的单轴拉伸及其本构模型[J]. 岩土工程学报, 1998, 20(6): 8-11 |
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| 作者姓名： | 金丰年 钱七虎 |
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| 作者单位： | 工程兵工程学院人防工程系； |
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| 摘 要： | 在１０种岩石单轴拉伸试验的基础上，分析了岩石在拉应力作用下非弹性应变随应力增加而增加的规律性，提出了能够表现岩石受拉变形破坏全过程的非线性粘弹性本构方程。通过对拉应力作用下岩石本构模型与裂缝扩展模型的比较，讨论了岩石在受拉过程中非弹性应变增加与裂缝扩展之间的关联，发现了两者时间效应特征的相似规律性。
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| 关 键 词： | 岩石 单轴拉伸 非弹性应变 裂缝扩展 本构模型 |
Uniaxial tension and mechanical model of rock |
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| Jin Fengnian,Qian Qihu. Uniaxial tension and mechanical model of rock[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(6): 8-11 |
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| Authors: | Jin Fengnian Qian Qihu |
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| Affiliation: | Nanjing Engineering Institute Department of Civil Defence Engineering Nanjing 210007 |
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| Abstract: | In this study, on the basis of uniaxial tensile test of ten kinds of rock,the increase of inelastic strain with stress has been investigated.The non-linear visco-elastic model was proposed which could be used to explain failure behaviour of uniaxial tension of rock. And by comparison of uniaxial tension model and crack extension model, the relationship between the increase of inelastic strain and crack extension was discussed. |
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| Keywords: | rock uniaxial tension inelastic strain crack extension model. |
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