Solid propellant service life analysis via nondestructive testing
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United States of America Patent
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Aug 6, 1991
Grant Date -
N/A
app pub date -
Dec 28, 1989
filing date -
Dec 28, 1989
priority date (Note) -
Expired
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Abstract
A process for determining the aging characteristics of solid rocket propellant samples by measuring their dynamic mechanical properties is disclosed. Samples of rocket propellant are tested using a mechanical spectrometer at low strain levels and low frequencies. Since the dynamic storage modulus of a sample increases with aging time and aging temperature, it is an indicator of the acceptability of the propellant sample as a usable fuel source. The process allows a user to determine empirically the aging rate of a sample for each aging temperature with a nondestructive test procedure.
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