Poisson ratio effect on stress behavior of propellant grains under ignition loading

Hung Ta Chu, Jung Hua Chou

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In this study, a transient finite element model, accompanied by the time-temperature shift principle, is used to simulate the transient response of a solid rocket motor so that the response of the propellant grains under real ignition pressurization loading conditions is investigated. The results show that the transient effect is important for structural completeness of the solid propellant grains under the ignition loading conditions. There is an apparent difference among the stresses of different Poisson's ratios. When changing the property of propellant grains from compressible into incompressible, the stress and strain of propellant grains under ignition pressurization loading decreased significantly. The stress variation versus Poisson's ratio is nonlinear and cannot be neglected.

Original languageEnglish
Pages (from-to)662-667
Number of pages6
JournalJournal of Propulsion and Power
Volume27
Issue number3
DOIs
Publication statusPublished - 2011

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Fuel Technology
  • Mechanical Engineering
  • Space and Planetary Science

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