An experiment on dynamic rock fracture toughness test using edge-notched disc specimen is presented.

提出用边切槽圆盘试样测量岩石动态断裂韧度的实验方法。

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Based on these and different assumptions, the rock fracture toughness has been determined with rock fracture toughness testing system, which is self-developed and has the internal pressure.

在此基础上，应用自主研制的内压法岩样断裂韧性测试系统对不同假设条件下的岩石断裂韧性进行测定。

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Based on substantial experimental data, the effects of loading rates on the strength, fracture toughness and fragmentation efficiency of rock materials are discussed in this paper.

本文以充分的实验结果为依据，讨论了加载率对岩石材料的强度、断裂韧度和破碎效果的影响。

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