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Comparisons of Life Prediction Method of Copper Alloy of Regenerative Cooling Chamber for Thrust Chamber  

Lee, Keum-Oh (한국항공우주연구원 연소기팀)
Ryu, Chul-Sung (한국항공우주연구원 연소기팀)
Choi, Hwan-Seok (한국항공우주연구원 연소기팀)
Publication Information
Aerospace Engineering and Technology / v.9, no.2, 2010 , pp. 90-97 More about this Journal
Abstract
A study about the fatigue life of copper alloy which is used in inner jacket of regenerative cooling chamber of liquid rocket engine has been performed. Mechanical properties of the material and fatigue life have been taken from tensile tests and low-cycle fatigue tests at room temperature and several elevated temperatures. Original universal slopes method, modified universal slopes method, Mitchell's method, Baumel and Seeger's method, and Ong's method have been used for predicting the fatigue data. It was found that the novel life prediction method should be developed for the copper alloys since almost all data have not been predicted well with the widely used methods.
Keywords
regenerative cooling chamber; copper alloy; fatigue life; elevated temperature;
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  • Reference
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