Contact With The Metal Material Of The Action Of An Explosive Shock Wave Attenuation

In this dissertation, the theoretical analysis and experimental investigation were carried out to study the attenuation rule of shock wave in steel plate and steel-aluminum plate under contact explosion.The theoretical analysis obtains the attenuation rule of shock wave. The result of theoretical analysis is agreement with the result of experimental investigations from analysing, so correctness of theoretical study and experimental investigations was proved.Using the fiber-optic probe technique, the time when the shock wave reachs the different places in steel plate and steel-aluminum plate under contact explosion with insensitive RDX and aluminize RHTL had been separately measured. And the attenuation rule of shockwave, which was produced by the insensitive RDX and RHTL separately, in the above two materials have been obtained by the Hugoniot relation of each material.Experimental investigation indicates that shock wave velocity and shock wave pressure of beginning which were produced with aluminize RHTL were smaller than that of insensitive RDX in steel plate, however, attenuating velocity of shock wave velocity and shock wave pressure which were produced under contact explosion with aluminize RHTL were quciker than that of insensitive RDX in steel plate, when steel- plate had been separately operated under contact explosion with insensitive RDX and aluminize RHTL, and shock wave press had changed suddenly in the interface between steel and aluminum, In the circumstances, the shock wave velocity had ascended suddenly and shock wave pressure had descended suddenly.