Research on load characteristics and damage effect of underwater shaped metal jet
In order to study the metal jet load caused by underwater contact explosion and its damage characteristics to the double-layer water barrier.In this paper,the effect of the cone angle on the velocity of shaped charge jet is studied by changing the cone angle of a conical metal hood using the coupled Euler-Lagrange method.By changing the shape of the metal cover,different types of shaped charge penetrators were obtained,and their damage effects on the double-layer target plate were simulated underwater.Different cone angles affect the action strength of the shaped jet.The metal cover with a cone angle of 90° can form the best jet shape and maximum jet velocity,and the penetration effect is the best.The damage caused by the plates varies,with shaped jets having greater penetrating power,while explosively shaped projectiles cause a larger area of damage.By changing the shape of the metal cover,different types of penetrators can be obtained,which can adapt to complex and changing marine and damage requirements.This research can provide a reference for the development of underwater weapons and the explosion-proof,impact-resistance,and protection of submarines.
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