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中国有色金属学报(英文版), 2017, 27(1): 184-196.
10.1016/S1003-6326(17)60021-9
基于SHPB实验的岩石峰后动态行为研究

周子龙 1, , 赵源 2, , 江益辉 3, , 邹洋 4, , 蔡鑫 5, , 李地元 6,

1.中南大学资源与安全工程学院,长沙,410083;
2.中南大学资源与安全工程学院,长沙,410083;
3.中国中铁工程设计咨询集团有限公司,北京,100000;
4.cole Polytechnique Fédérale de Lausanne EPFL，School of Architecture，Civil and Environmental Engineering，Lausanne CH-1015，Switzerland;
5.中南大学资源与安全工程学院,长沙,410083;
6.中南大学资源与安全工程学院,长沙,410083
运用改进的SHPB实验系统开展岩石动态力学试验，借助高速摄影仪和动态应变仪组成的同步测量装置研究岩石在冲击荷载下的破坏过程和内在机制。结果表明：在峰后阶段，尽管岩样已经产生了可见的裂隙但仍能保持很好的应力平衡状态。岩样被劈裂成条状后依然能承受一定的外应力并保持两端的应力平衡。同时，进一步的颗粒流数值模拟显示，岩石的破坏过程可以用微观破裂的演化来描述。剪切裂隙总是最先出现并在外部应力下降到一定水平时停止增长。然而，拉伸裂隙在岩样所受应力接近其强度峰值时出现，并对最终的破坏形态起决定性的影响。
引用： 周子龙, 赵源, 江益辉, 邹洋, 蔡鑫, 李地元 基于SHPB实验的岩石峰后动态行为研究. 中国有色金属学报(英文版), 2017, 27(1): 184-196. doi: 10.1016/S1003-6326(17)60021-9
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