During testing low impedance materials(so-called soft materials) by a conventional split Hopkinson pressure bar(SHPB),the transmission strain pulse is too weak to be collected correctly.

• 利用传统分离式霍普金森压杆(SHPB)对低密度、低波阻材料进行测试时,存在透射信号弱、试样在加载时间内难以达到受力变形均匀的不足。