Contact Explosive Shock Wave Propagation In Aluminum And Aluminum - Steel Double Plate

In this thesis, experimental investigations and numerical simulationsare carried out to study shock wave attenuations in aluminum plate andaluminum-steel plate under contact explosion with desensitized RDX andaluminized RHTL (55RDX/24TNT/20A1/lcere). By empirical formula, thedetonation parameters of desensitized RDX and aluminized RHTL areobtained, and the initial parameters of shock wave in aluminum plate under(?)ontact explosion also have been calculated. By comparison with several(?)est techniques of shock wave parameters in aluminum plate under contactexplosion have been comparing, the probe-oscillograph technique was(?)hosen to measure D-x relation.By the fiber-optic probe technique, the shock wave reach time indifferent places in aluminum plate and aluminum-steel plate under contactexplosion with desensitized RDX and aluminized RHTL had been measuredseparately, and the velocity of shock wave can be obtained. Then the u-x,p-x,p-x relationship in the above materials have been obtained by theHugoniot relation, mass and momentum conservation relationships of eachmaterial. So the attenuat ion rules of shock wave in the above two materials,which were produced by the desensitized RDX and RHTL separately, can beenobtained.By ANSYS/LS-DYNA code, the numerical simulation on the contactexplosion with desensitized RDX shows the u-x relationship of the shockwave in aluminum plate and aluminum-steel plate. And then the results ofthe numerical simulation was compared and analysed with the results ofexperiment.