Issue |
MATEC Web Conf.
Volume 293, 2019
2019 7th Asia Conference on Mechanical and Materials Engineering (ACMME 2019)
|
|
---|---|---|
Article Number | 04005 | |
Number of page(s) | 4 | |
Section | Mechanical Engineering | |
DOI | https://doi.org/10.1051/matecconf/201929304005 | |
Published online | 25 September 2019 |
Structural integrity analysis and experimental investigation for solid rocket motor grain subjected to low temperature ignition
College of Aeronautics and Astronautics, National University of Defense Technology, Changsha, Hunan 410073, P.R. China
a zb_shen@yeah.net
b bliangzi0403@126.com
c c50618276@qq.com
The structural integrity of solid rocket motor(SRM) grain is severely tested owing to the combined action of low temperature and pressure load under the load case of low temperature ignition. The three dimensional finite element model of SRM was created to analyze the structural integrity of the SRM grain subjected to low temperature and ignition pressure based on three dimensional viscoelastic finite element method via MSC.Patran/Marc. Meanwhile, cold pressurization test was applied on certain SRM. The experimental result and numerical result were compared based on uncoupling principal of temperature and pressure. The result show that the safety factor of solid rocket motor grain is 2.46 which can meet the requirement of structural integrity. The experimental results are in good agreement with the simulation results. Relevant research methods and conclusions can provide reference for the design, analysis and test of SRMs.
© The Authors, published by EDP Sciences, 2019
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