| 二种岩石断裂韧度试样测试的稳定性分析 |
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| 引用本文： | 王启智,鲜学福.二种岩石断裂韧度试样测试的稳定性分析[J].实验力学,1991,6(3):264-271. |
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| 作者姓名： | 王启智 鲜学福 |
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| 作者单位： | 重庆大学，重庆大学 |
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| 摘 要： | 本文分析了 ISRM 采纳的两种具有人字形切槽的试样在测试过程中裂纹扩展的稳定性问题,计算了它们在不同加载条件和试验机刚度时各自的稳定性因子;指出对岩石等一类脆性材料,加载方式和试验机刚度对测试的稳定性有很大的影响;说明了这两种试样在稳定性方面的差异,并指出它们在稳定性上明显地优于普通直裂纹试样.
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| 关 键 词： | 岩石 断裂韧度 试样 稳定性 测试 |
Stability Analysis for Testing Fracture Toughness of Rock |
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| Wang Qizhi Xian Xuefu.Stability Analysis for Testing Fracture Toughness of Rock[J].Journal of Experimental Mechanics,1991,6(3):264-271. |
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| Authors: | Wang Qizhi Xian Xuefu |
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| Institution: | Chongqing University |
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| Abstract: | Stability Analysis is made for crack extension in two rock specimens with chev- ron notch,proposed by the international Society of Rock Mechanics.Stability factors are calcu- lated under different loading conditions and with various stiffness of testing machine.It is found that for brittle-materials,such as rock,the loading manner and stiffness of testing machine have great influence on testing stability. |
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| Keywords: | rock fracture toughness chevron notch specimen crack extension stability factor compliance |
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