Numerical calculation study of the influence of wave shaper on fragment scattering characteristics under different detonation modes

DOI:	10.11809/bqzbgcxb2023.11.022
Keywords:	fragmentation warhead; wave shaper; detonation mode; fragment scattering velocity; fragment scattering angle
Abstract:	Based on the wave shaper to improve the axial scattering characteristics of fragmentation warhead, using the method of numerical calculation, the spatial distribution of fragments, the fragmentation scattering velocity, and the fragment scattering angle with or without the wave shaper are compared under the modes of central point initiation, one end center initiation, two end center initiation, and center three point initiation. The impact of the wave shaper on the scattering characteristics of fragments under different detonation modes is summarized, and a preliminary analysis is conducted on the impact mechanism of the wave shaper. The results show that compared with non wave shaper, the wave shaper can improve the consistency of the axial scattering distance and the scattering velocity of the fragments under the four initiation modes. The numerical calculation values of the fragment scattering angle of the numerical model with the wave shaper are reduced by 43.2%, 43.3%, 40.0% and 35.2%, respectively. The distribution of the fragments along the axial direction is more concentrated, and the distribution density of the fragments is increased by 78.3%, 78.4%, 68.0% and 55.8%, respectively. The wave shaper has the most significant gain in the distribution density of the fragments when the center of one end is detonated. The research results can provide reference for the wave shaper curve and the structural design of the fragmentation warhead.
Issue:	Vol. 44 No. 11 (2023)
Published:	2023-11-28
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