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A Correction for Ejection Angles of Fragments from Cylindrical Wareheads
Author(s) -
König P. J.
Publication year - 1987
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19870120504
Subject(s) - warhead , detonation , mechanics , drag , axial symmetry , physics , drop (telecommunication) , divergence (linguistics) , flow (mathematics) , geometry , geology , chemistry , explosive material , mathematics , engineering , nuclear physics , telecommunications , linguistics , philosophy , organic chemistry
The problem of end effects influencing the ejection angles of fragments near the ends of cylindrical warheads is approached semi‐empirically. A correction term is added to the Taylor angle, based on the accepted concept that the reduced fragment velocities near the ends of a warhead are due to release waves in the detonation gas. Acceptable agreement between experiment and prediction is found for available experimental data. The results indicate that the accelerative drag due to the axially‐outward component of the release‐wave gas flow over the fragments dominates the divergence of the fragments for prefragmented casings, the axial pressure drop playing a minor part, while the reverse seems to be true for the divergence of fragments from solid casings.