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Ultrasonic Investigation of Mechanical Properties of Double Base Rocket Propellants
Author(s) -
van der Schroeff J. A.,
de Boer R. S.
Publication year - 1976
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.19760010103
Subject(s) - propellant , rocket (weapon) , materials science , softening , rocket propellant , composite material , solid fuel rocket , base (topology) , ultrasonic sensor , range (aeronautics) , acoustics , aerospace engineering , physics , engineering , mathematical analysis , mathematics
For a series of double base rocket propellants and for poly‐ methylmethacrylate (PMMA) the longitudinal and transverse sound wave velocities are measured at a frequency of 0.351 MHz in t h e temperature range of −40°C to +60°C. The relations between these acoustic properties and mechanical properties are given and the principal independent elastic constants are calculated. With increasing temperature these constants of the propellants decrease gradually, which points to a softening of the material. This is important for the functioning of the propellant grains in the rocket motors.