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http://dx.doi.org/10.6108/KSPE.2019.23.1.009

Natural Aging Properties Analysis of HTPB Propellant  

Park, Jung-Ho (Propulsion Center, Hanwha Corporation)
Ryu, Nam-Sun (Propulsion Center, Hanwha Corporation)
Park, Jae-Beom (The 4th R&D Institute - 1st Directorate, Agency for Defence Development)
Jung, Gyoo-Dong (The 4th R&D Institute - 1st Directorate, Agency for Defence Development)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.1, 2019 , pp. 9-14 More about this Journal
Abstract
Hydroxy-terminated polybutadiene (HTPB) propellants of solid rocket motors age differently under different storage temperatures. The shelf life of a solid rocket motor depends on the aging ratio of the HTPB propellant; it can be estimated through the viscoelastic properties by an aging test. This study analyzed the initial and natural aging properties during long-term storage. The initial properties were obtained from characterization and accelerated test results. The test results were obtained by analyzing the strain on cylindrical grains when a thermal load was applied.
Keywords
HTPB Propellant; Natural Aging; Accelerated Aging; Solid Rocket Motor Shelf-life;
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