The shear device for explosive tablet was designed by ANSYS/LS-DYNA and the response character was studied using Φ20 mm × 5 mm and Φ20 mm × 9 mm PBX-2.The pressure change was measured by Manganin pressure gauges.Ignition process was analyzed by high-speed motion pictures.The reaction overpressure of explosive was gained by blast pressure gauges.Results preliminary show that height threshold decreases from 3.5 ~ 3.7 m to 3.0 ~ 3.1 m with explosive thickness increasing.The height threshold decreases when incr...