2019
DOI: 10.1002/prep.201900114
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Equivalent Principle of Time‐Temperature‐Strain Rate for Poisson's Ratio of Composite Solid Propellant

Abstract: The viscoelastic Poisson's ratio of solid propellant seriously affects the analytical accuracy of the structural integrity of the solid rocket motor. Based on the digital image correlation (DIC) method, a stress relaxation test and a uniaxial constant tensile rate test were carried out to measure the viscoelastic Poisson's ratio of the composite solid propellant according to the stress characteristics of solidification cooling and ignition pressurization conditions. The effects of time, temperature, longitudin… Show more

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