UNDERWATER MINE EXPLOSION AND ITS IMPACT ON THE TARGET SHIP

Underwater mines are one of the major threats to surface ships and submarines. In the present work, detection, localization, and the shock loadings on a target ship due to explosion caused by an underwater multi-influence bottom mine containing most advanced PBX-charge have been studied. It was found that the keel shock factor (KSF) value is   0.50 kg1/2m-1 up to the water depth of 70 m. The shock wave energy at 70 m water depth is 14.8 kJm-2 where KSF equals to 0.50 kg1/2m-1. For a target ship, a significant drop in the blast pressure wave value (8.5-3.4 MPa) between the stern to the bow is noticeable with the total duration of shock loading of 0.0362s. The method proposed in the present study could be used for quick and reasonably accurate estimation of the impact of an incident shock wave underwater on the target ship.