Split Hopkinson Pressure Bar(SHPB) with a wedge and its holder appended to the end of the incident bar was used to exert dynamic split force at the edge notch of the specimen.

• 为了获得岩石在高加载速率作用下的动态断裂韧度值并分析加载速率的影响,由分离式霍普金森压杆入射杆杆端附加劈尖及其基座对边切槽圆盘试样施加动态劈裂载荷。