Combustion-induced crack/debond propagation in a metalized propellant

S. R. Wu, Y. C. Lu, K. K. Kuo, V. Yang

研究成果: Paper同行評審

3 引文 斯高帕斯(Scopus)


Combustion-induced crack propagation and debond in polyester-based high-elongation propellants with EPDM insulators and Kevlar/epoxy cases were investigated. Test samples were installed in a windowed test chamber and rapidly pressurized in a combustion environment. The effects of chamber pressurization rate on the development of crack propagation and debond were studied experimentally through the use of high-speed cinematography and pressure measurements. Test samples were recovered by means of the rapid chamber depressurization. Because of the high-elongation characteristic of the propellant, combinations of the crack-propagation modes were observed from the surfaces of the recovered samples. These crack-propagation and/or branching modes included unidirectional single crack, single crack with zigzag contour, crack propagation accompanied by local branchings, and crack branching with two or more cracks originating from the initial crack tip. Debond propagations in burning solid propellants were also studied. In general, debonding took place along the bond line with no branchings. An empirical correlation was obtained for debond propagation speed as a function of chamber pressurization rates.

出版狀態Published - 1992
事件AIAA/ASME/SAE/ASEE 28th Joint Propulsion Conference and Exhibit, 1992 - Nashville, United States
持續時間: 1992 7月 61992 7月 8


OtherAIAA/ASME/SAE/ASEE 28th Joint Propulsion Conference and Exhibit, 1992
國家/地區United States

All Science Journal Classification (ASJC) codes

  • 機械工業
  • 航空工程
  • 能源工程與電力技術
  • 控制與系統工程
  • 電氣與電子工程


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