Simulation of axially enhanced warhead prefabricated fragment explosion scatter

DOI:	10.11809/bqzbgcxb2025.03.009
Keywords:	prefabricated fragment; ABAQUS; scattering characteristics; axially enhanced warhead
Abstract:	In order to solve the problem that the traditional kill and blast warhead produces the central kill and blast blind area when striking the target vertically, an axial enhanced kill and blast warhead structure is proposed and designed in this paper. By designing the warhead charge head as a circular arc, and filling more prefabricated fragments evenly in the space around the warhead charge head to increase the number of axial fragments and improve the flying direction of axial fragments, the axial enhancement function of the warhead is realized. Based on Euler Lagrange element coupling (CEL) simulation algorithm, ABAQUS finite element simulation software is used to carry out numerical simulation analysis of the damage power field of the warhead. The simulation results show that the speed of most prefabricated fragments is between 800 m/s and 1 500 m/s, and the target can be effectively damaged under reasonable missile target intersection conditions. The fragments of the head of the warhead can be evenly distributed in the central damage area, and with the increase of the axial speed of the warhead when the projectiles converge, the fragments of the head of the warhead can still be evenly distributed in the central damage area. The designed axial enhancement warhead significantly increases the number of fragments within the central kill zone and ensures that the fragments are evenly distributed within the central kill zone, effectively addressing the issue of blind spots in the central kill zone caused by traditional kill blast warheads. The research results of this paper can support the design of the new type of axial enhanced kill and blast warhead, and provide a reference for the design of directional kill air and anti missile warhead.
Issue:	Vol. 46 No. 3 (2025)
Published:	2025-03-31
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