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Influence of Transverse Air or Inert‐Filled Gaps in HE Charges on the detonation velocity
Author(s) -
Held Manfred
Publication year - 1995
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.19950200205
Subject(s) - detonation , explosive material , transverse plane , air gap (plumbing) , materials science , mechanics , inert , composite material , physics , chemistry , structural engineering , engineering , organic chemistry , quantum mechanics
Gaps 0.8‐mm wide and transverse to the direction of detonation in high‐performance high explosive compositions, such as squeeze cast TNT/HMX (15/85) or pressed HMX/B (97/3), show no measurable time delay, or it must be less than 50 ns. As expected, delay times increase with the gap width. A surprising result, however, is the convex shape of the time delay curves, which begins at a gap width of about 1 mm. The delay time curves from air and plexiglass‐filled gaps resemble one another very much.