Research on the liner structural parameters of multi functional warhead

DOI:	10.11809/bqzbgcxb2023.01.015
Keywords:	warhead; liner; orthogonal experiment; numerical simulation; shaped charge; premade fragment
Abstract:	In order to research the comprehensive effect of the liner structure on the capabilities of multi functional projectiles, this paper uses an orthogonal experiment method on the basis of an interaction among three structural parameters of the high cone liner structure like cone angle “2α”, thickness “δ” and arc radius “γ”, as well as two mighty indexes of warhead armor penetration depth and fragment velocity. The finite element model of the multi functional warhead penetrating 45# steel target is established respectively according to the orthogonal table, and the comprehensive influence of various structural parameters on warhead power performance is studied by using LS DYNA numerical simulation and weighted grade method. The results show that the optimal liner structure of the 30 mm multi functional warhead is “2α=85°, δ=0.6 mm, γ=2 mm”, and at this time, the armor penetration depth of the warhead can reach 84 mm and the average fragment velocity is 601 m/s. The results can provide reference for enhancing the power of miniature multi functional ammunition and the application of orthogonal test methods in the research of ammunition structure.
Published:	2023-01-28
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