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Statistics of Density, Temperature and Air Gaps on the TATB Cylinder Test
Author(s) -
Souers P. Clark,
Lauderbach Lisa,
Gagliardi Franco,
Mortensen Clif
Publication year - 2017
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.201700007
Subject(s) - tatb , explosive material , cylinder , energy density , detonation , materials science , thermodynamics , mathematics , mechanics , statistics , physics , geometry , chemistry , theoretical physics , organic chemistry
Duplicate cylinder tests (CYLEX) have been run on PBX 9502 and LX‐17. The 95 % error in the absolute value of the derived detonation energy density is about ±1 % whereas the 95 % error of the difference error is ±0.5 % or better. The analytic model has been upgraded with a better strain description. The effect of the air gap between a pressed solid explosive and the inner copper wall has been measured and modeled. An off‐center effect has also been seen. Density effects on the energy density from 1.82 to 1.92 g cm −3 are described for LX‐17. Data has also been taken at −55, 75 and 125 °C. The last temperature gives a large enough difference to show that the mechanism appears to be only density change.