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Journal of Projectiles, Rockets, Missiles and Guidance >

2016 , Vol. 36 >Issue 6: 78 - 82

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2016.06.020

ROCKETS TECHNOLOGY

Transient Structural Integrity Analysis of Single Chamber Dual Thrust Engine Charge

  • GONG Jianliang ,
  • FAN Xuezhong ,
  • LI Hongyan ,
  • WANG Zhong
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  • Xi'an Modern Chemistry Research Institute, Xi'an 710065, China

Received date: 2015-12-22

  Online published: 2025-05-30

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Abstract

For the structural integrity of single chamber dual thrust engine charge under low temperature ignition condition, using incremental finite element method to solve the finite element model of thermal viscoelastic damge, the stress-strain field of internal charge was obtained. Research showed that in curing temperature, artificial debond layer had stress release effect on the head and tail of charge, to avoid the interface between the charge and the insulation layer. Meanwhile, the part which had larger Mises stress value charge was the parts of the wingtip transition and cylindrical surface. At the ignition time, the part which had large value of the charge hoop strain was the surface of the cylinder section. Finally, this method could be used to guide the design and safety evaluation of engine charge.

Key words： solid rocket motor; viscoelasticity; constitutive relation; structural integrity; strain softening

Cite this article

GONG Jianliang , FAN Xuezhong , LI Hongyan , WANG Zhong . Transient Structural Integrity Analysis of Single Chamber Dual Thrust Engine Charge[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2016 , 36(6) : 78 -82 . DOI: 10.15892/j.cnki.djzdxb.2016.06.020

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