Rapid vaporization of the surface produces a compressive shock wave which propagates into the material.
表面材料急剧气化,产生向材料内部传播的应力波。
The results show that, open-cellular al foams have a good shock weakening property, where the shock compressive stress weakens exponentially and the wave velocity weakens linearly with the distance.
结果表明:开孔泡沫铝具有良好的冲击衰减性能,使冲击波压力在其中呈指数关系衰减,而波速则随距离呈线性关系衰减。
Compressive faults occurred after principal earthquake with slow variation in propagation and release of stress wave, this might lead to higher after shock intensity and longer duration.
挤压型逆冲断层地震在主震之后,应力传播和释放过程比较缓慢,可能导致余震强度较大,持续时间较长。
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