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Blast Impulse at Very Near Distance
Author(s) -
Held Manfred
Publication year - 2008
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.200700274
Subject(s) - impulse (physics) , spheres , explosive material , drag , physics , mechanics , specific impulse , materials science , classical mechanics , chemistry , thermodynamics , propulsion , astronomy , organic chemistry
Steel cubes and steel spheres were propelled in radial directions by a detonating cylindrical high explosive charge at scaled distances of 0.05–0.25 m kg −1/3 . The analysed velocities can be simply transferred to momenta, to energies and analysed impulse densities. A little surprising result is that the cubes with the larger area mass achieved remarkably higher velocities compared to the spheres. This is definitely a result caused by different air drag coefficients.