To further explore the applicability of liner types under different shell structures and the influence of wa-ter layer thickness,three kinds of liner structures,namely the spherical segment,60° conical,and hemispherical conical,were analyzed for their effects on the damage performance of shaped charge jets.Numerical simulations were conducted to assess the jet's shape,velocity,and head width variation and the resulting breach size on the tar-get plate.The findings indicated that the spherical segment liner was most effective against single-layer shells at close ranges.For double-layer shells,the hemispherical conical liner demonstrated superior continuity and penetra-tion of the shaped charge jet compared with the 60° conical liner.Additionally,an increase in the water layer thickness at the explosive height correlated with an increase in the target breach size.Notably,a significant positive jump in the breach size increment was identified when the water layer thickness approached 300 mm.This suggests that through the strategic adjustment of the water layer thickness,the underwater destructive effectiveness of shaped charge jets can be significantly enhanced.The study can provide reference for the research of damage performance of shaped warhead.
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