Primary Research on Side Pressure of Cylindrical TNT at Underwater Explosive Close-Field

According to the non-sphericity characteristic of shock wave surface at close-field after cylindrical charge with end boost exploring under water, the propagation of shock near-field is recorded by frame camera within 36 s after blasting, and the shape of shock on diverse time and situation is analyzed. The shock pressure of arbitrary point on the side of charge is measured through two streak cameras. Combined with the Rankine-Hugoniot relation, the pressure on shock front is gained, and the resolution is compared with LS-DYNA numerical value. It demonstrated that they are consistent relatively.