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Analytical and Numerical Study of the Shock Pressures in the Gap Test
Author(s) -
Sanchidrián José A.
Publication year - 1993
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.19930180604
Subject(s) - explosive material , detonation , shock (circulatory) , constant (computer programming) , mechanics , matching (statistics) , function (biology) , code (set theory) , shock wave , mathematics , physics , materials science , thermodynamics , chemistry , computer science , statistics , medicine , organic chemistry , set (abstract data type) , evolutionary biology , programming language , biology
This paper analyzes the functional relationship of pressure induced in the gap versus distance travelled. P = k e −ax . An analytical shock matching calculation is described to evaluate the constant k as a function of the density and the velocity of detonation of the donor explosive. TDL code is used to check the values of the constants for several donor explosives, and to compute the decay constant a. Functions for pentolite are compared with experimental data from bibliography. The method can be used to predict equivalent gap test thicknesses for donor explosives different from the commonly used pentolite.