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Journal of Projectiles, Rockets, Missiles and Guidance >

2019 , Vol. 39 >Issue 3: 72 - 76,80

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.03.017

Analysis of Relation Between Poisson's Ratio and Grain StructuralIntegrity Under the Low Temperature Ignition Environment

  • SUN Junli ,
  • LONG Dafeng ,
  • WANG Zhijun ,
  • LI Zhaoyong
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  • 1 North University of China, Taiyuan 030051, China
    2 Huizhou University, Guangdong Huizhou 516007, China
    3 Jinxi Industries Group Company Defence Equipment Institute, Taiyuan 030027, China

Received date: 2018-04-14

  Online published: 2025-05-20

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Abstract

The Poisson's ratio value has an effect on the analysis result of the structural integrity. In this paper, analysis of relation between Poisson's ratio and structural integrity of solid rocket motor grain under the low temperature ignition environment. The equivalent strain of temperature and pressure is calculated by finite element method. Meanwhile, how to reasonably select Poisson's ratio is analyzed. The results show that the maximum equivalent strain of the grain structural is increased when the Poisson's ratio is increased. On the contrary, the maximum equivalent strain of the pressure is reduced, and the equivalent strain is linear. Poisson's ratio of 0.493 is the most reasonable choice in the low temperature ignition environment, and the solid rocket motor grain is in good condition.

Key words： Poisson's ratio; SRM; structural integrity; low temperature environment

Cite this article

SUN Junli , LONG Dafeng , WANG Zhijun , LI Zhaoyong . Analysis of Relation Between Poisson's Ratio and Grain StructuralIntegrity Under the Low Temperature Ignition Environment[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2019 , 39(3) : 72 -76,80 . DOI: 10.15892/j.cnki.djzdxb.2019.03.017

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