Volume 39 Issue 9
Sep.  2013
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Yang Jinhui, Chen Tao, Jin Ping, et al. Failure analysis of reusable rocket engine coolant passage[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1187-1191. (in Chinese)
Citation: Yang Jinhui, Chen Tao, Jin Ping, et al. Failure analysis of reusable rocket engine coolant passage[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1187-1191. (in Chinese)

Failure analysis of reusable rocket engine coolant passage

  • Received Date: 23 Oct 2012
  • Publish Date: 30 Sep 2013
  • Through the creep nonlinear thermal-structure analysis of the reusable combustion chamber coolant passage under cyclic thermal and mechanical loading, comparison between kinematic and isotropic hardening results was made to study the hardening influence. Basing on those cyclic structure results, the "dog house" failure model of coolant passage was implemented. Results indicate that the thermal and structure environment could be improved by introducing materials with similar thermal conductivity for the jacket and inner wall and optimizing the geometric model; the kinematic and isotropic hardening results were similar in illustrating the development of stress and strain under cyclic loadings, whereas at the remaining strain variance of approximate 0.06%; the strain hardening effect was obvious in those cyclic loops which was analogous each cycle and right moved, and the fatigue damage and creep damage were determined respectively by cyclic strain and stress.

     

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