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Damage analysis of HTPB propellant based on temperature load test
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Damage analysis of HTPB propellant based on temperature load test
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Journal Article
Damage analysis of HTPB propellant based on temperature load test
2024
Overview
In this paper, the HTPB propellant of a solid rocket motor was taken as the research object. Considering the effect of temperature on the propellant, various types of tests were carried out to study the damage law of the propellant at the macroscopic scale. The aging of HTPB propellant under temperature loading is mainly manifested as oxidative cross-linking of the binder network. The greater the cross-linking degree of the specimen is, the smaller the maximum elongation of the propellant is. Under constant strain load, some AP particles will be dehumidified, and at room temperature, AP particles will decompose slowly, resulting in an increase in strength and a decrease in elongation. The aging of HTPB propellant under constant strain loading at high temperatures is manifested as oxidation cross-linking of the binder network, ε m of propellant declines, and σ m of propellant is reduced.
Publisher
IOP Publishing
