| 损伤灰岩动态压缩力学特性的实验研究 |
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| 引用本文： | 祝文化,李元章.损伤灰岩动态压缩力学特性的实验研究[J].武汉理工大学学报,2006,28(7):90-92. |
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| 作者姓名： | 祝文化 李元章 |
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| 作者单位： | 武汉理工大学土木工程与建筑学院,武汉430070 |
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| 摘 要： | 在Hopkinson压杆上采用改进的实验技术对灰岩材料进行了高应变率动态压缩实验，有效地解决了横向惯性效应对岩石类脆性材料实验精度的影响，对完整灰岩和损伤灰岩的动态压缩力学特性进行了对比实验研究。结果表明，灰岩表现出应变率硬化效应和损伤软化效应，完整岩石的极限动态破坏压应力高于损伤岩石约30％。
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| 关 键 词： | 灰岩 Hopkinson压杆 应变率效应 损伤效应 |
| 文章编号： | 1671-4431(2006)07-0090-03 |
| 修稿时间： | 2006年2月20日 |
The Experimental Research on Dynamic Compressive Mechanical Properties of Damaged Limestone |
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| ZHU Wen-hua,LI Yuan-zhang.The Experimental Research on Dynamic Compressive Mechanical Properties of Damaged Limestone[J].Journal of Wuhan University of Technology,2006,28(7):90-92. |
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| Authors: | ZHU Wen-hua LI Yuan-zhang |
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| Abstract: | The high strain-rate testing on limestone damaged and original limestone was made by Hopkinson pressure bar with improvement method to avoid the influence of the widthways inertia effect.Experimental research on dynamic compressive mechanics properties of original and damaged limestone was carried out.The testing results show that the limestone material is a material of both strain rate hardening effect and damage soften effect apparently,and the limit dynamic compressive stress of original limestone is more than the damage limestone 30%. |
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| Keywords: | limestone Hopkinson pressure bar strain-rate effect damage effect |
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