Study on the Viscoelastic Poisson‘s Ratio of Solid Propellants Using Digital Image Correlation Method

Hui Ru Cui; Guo Jin Tang; Zhi Bin Shen

doi:10.1002/prep.201500313

journal article Feb 26, 2016

Study on the Viscoelastic Poisson‘s Ratio of Solid Propellants Using Digital Image Correlation Method

Hui Ru Cui Guo Jin Tang Zhi Bin Shen

Propellants, Explosives, Pyrotechnics Vol. 41 No. 5 pp. 835-843 · Wiley

View at Publisher Save 10.1002/prep.201500313

Abstract

AbstractDigital image correlation methods were used for further studies of the viscoelastic Poisson's ratio of solid propellants. The Poisson's ratio and the Young's relaxation modulus of solid propellants were separately determined in a single stress relaxation test. In addition, the effects of temperature, longitudinal strain, preload and storage time on the Poisson's ratio of solid propellants were discussed. The Poisson's ratio master curve and the Young's relaxation modulus master curve were constructed based on the time‐temperature equivalence principle. The obtained results showed that the Poisson's ratio of solid propellants is a monotone non‐decreasing function of time, the instantaneous Poisson's ratio increased from 0.3899 to 0.4858 and the time of the equilibrium Poisson's ratio occurred late when the temperature was varied from −30 °C to 70 °C. The Poisson's ratio increased with temperature and longitudinal strain, decreased with preload and storage time, while the amplitude Poisson's ratio increased with preload, decreases with longitudinal strain and storage time. The time of the equilibrium Poisson's ratio occurred in advance with the increase of longitudinal strain, preload and storage time.

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Details

Published: Feb 26, 2016
Vol/Issue: 41(5)
Pages: 835-843
License: View

Authors

H

Hui Ru Cui

College of Aerospace Science and Engineering National University of Defense Technology Changsha 410073, P. R. China

G

Guo Jin Tang

College of Aerospace Science and Engineering National University of Defense Technology Changsha 410073, P. R. China

Z

Zhi Bin Shen

College of Aerospace Science and Engineering National University of Defense Technology Changsha 410073, P. R. China

Cite This Article

Hui Ru Cui, Guo Jin Tang, Zhi Bin Shen (2016). Study on the Viscoelastic Poisson‘s Ratio of Solid Propellants Using Digital Image Correlation Method. Propellants, Explosives, Pyrotechnics, 41(5), 835-843. https://doi.org/10.1002/prep.201500313

Study on the Viscoelastic Poisson‘s Ratio of Solid Propellants Using Digital Image Correlation Method

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