The Impact of Initiation Mode of Blast Fragmentation Warhead on the Power to Kill the Ground Target

doi:10.3969/j.issn.1000-1093.2021.11.002

Abstract

Abstract: In order to improve the damage power of blast fragmentation warhead to the ground target，the range static explosion test and the numerical simulation method are used to study the power of the aimed warhead under the sequential initiation network. The fragment dispersion rule of warhead under different initiation modes is analyzed based on LS-DYNA finite element program. The C language program is written to obtain the distribution density and energy distribution of the effective fragments during impacting on the ground.The effective damage area of warhead under different motion parameters (falling angle，falling speed，and falling height) was calculated by using the damage probability estimation method. The research results show that the speed gains of eccentric two lines and eccentric three lines sequential initiations in the locating direction are 20.3% and 19.8%. Sequential initiation can effectively improve the scattering angles of fragments，increase the kinetic energy and density of fragments，and further increase the damage area of warhead; the warhead by eccentric two lines sequential initiation has the highest damage efficiency，the effective damage area gain can reach up to 809.1%; and the damage area calculation method used here can better reflect the impacts of fragment density and kinetic energy on the damage efficiency.

Key words: blastfragmentationwarhead, explosivenetwork, eccentricinitiation, numericalsimulation, damageassessment

CLC Number:

TJ410.2

ZHANG Haoyu, ZHANG Shukai, CHENG Li, LI Yuan, WEN Yuquan, ZHANG Zhengwei. The Impact of Initiation Mode of Blast Fragmentation Warhead on the Power to Kill the Ground Target[J]. Acta Armamentarii, 2021, 42(11): 2300-2309.

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