摘要
为考察应力波延续时间和波形对岩石动态破碎强度的影响，作者对几种不同类型的岩石进行了不同入射波波形和延续时间条件下的冲击加载实验。研究结果表明，在ＳＨＰＢ试验中，入射应力波波形和延续时间对岩石动态破碎强度的影响很小，破裂强度主要取决于应变速率，并近似与它的１／３次幂成正比。
In order to investigate the effects of loading stress waveforms and durations on rock dy-namic strength the authors performed rock impact experiments under the conditions of vari-ous waveforms and durations using SHPB. The results have shown that the shapes and dura-tions of incident stress waves do not effect a change in rock dynamic fracture strength，whichdepends mainly on average strain rate and is approximatly equal to。
基金
国家自然科学基金
