Mechanical Properties of HTPB Solid Propellants With Different Strain Rate at Low Temperature

WANG  Hugan

doi:10.15892/j.cnki.djzdxb.2018.06.003

Journal of Projectiles, Rockets, Missiles and Guidance >

2018 , Vol. 38 >Issue 6: 12 - 14,18

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2018.06.003

Mechanical Properties of HTPB Solid Propellants With Different Strain Rate at Low Temperature

WANG Hugan

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China Airborne Missile Academy, Henan Luoyang 471009, China

Received date: 2017-03-15

Online published: 2025-05-29

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Abstract

To investigate the correlation between mechanical properties of HTPB propellants at low temperature and grain structural integrity, solid propellant tensile tests with different strain rate were conducted, then the mechanical properties of HTPB propellants under low-temperature igniting situation were obtained by the high-low combined tensile tests. The results showed that the double peaks of stress-strain curves were more obvious with the strain rate increased at -50 °C. The additional elongation was about 11%, which was rather different from the results of single strain rate tensile tests when the initial damage in low strain rate tensile process accumulated with the damage in high strain rate tensile process

Key words： solid propellant; high strain rate; combined tensile; structural integrity

Cite this article

WANG Hugan . Mechanical Properties of HTPB Solid Propellants With Different Strain Rate at Low Temperature[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2018 , 38(6) : 12 -14,18 . DOI: 10.15892/j.cnki.djzdxb.2018.06.003

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