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http://dx.doi.org/10.5139/JKSAS.2014.42.9.745

An Evaluation on Rupture Behavior of Nozzle Closure in Multi-Nozzle System  

Ro, Young-Hee (Agency for Defense Development(ADD))
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.42, no.9, 2014 , pp. 745-751 More about this Journal
Abstract
For the multi-nozzle propulsion, the rupture pressure of nozzle closure has an effect on the initial strain rate of ignition. Moreover, the deviation of rupture pressure for each nozzle closure leads to side forces which can disturb the attitude control of rocket. When designed, it should be considered whether nozzle closures are ruptured equally and exactly in the intented pressure. In this paper, the rupture behavior is analyzed by analytical and experimental methods for plate and "+" notched nozzle closures. The rupture pressure and deviation for operating temperature, whether notched or not and notched directions are analyzed. This paper provides a comparison between rupture pressure prediction of finite elements method which tool is Abaqus/Explicit and results of the rupture test. Jonson-Cook shear failure model which corresponds to the damage initiation criterion were used in this simulation.
Keywords
Rupture Behavior; Nozzle Closure; Johnson-cook Failure Model; Rupture test;
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  • Reference
1 H. S. Cha, S. J. Oh, J. B. Park, U. J. Lee, "Decrease of Burst Pressure used a Nozzle Closure and Ignition Characteristics for a Gas Generator," The Korean Society of Propulsion Egineers Symposium, November 2010, pp. 217-220.   과학기술학회마을
2 Teng, X., Wierzbicki, T., "Evaluation of six fracture models in high velocity perforation," Engineering Fracture Mechanics, 2006, pp. 1653-1678.
3 Fleming J., Nugeyre, J.C., "Minimum Smoke 1.3 Hazard Class High Performance Rocket Motor with IM," NDIA IM&EM Technology Symposium, 15-17 November 2004, pp. 14-15
4 Johnson, G.R., Cook, W.H., "A constitutive model and data for metals subjected to large strains, high strain rates and high," Proceedings of the 7th International Symposium on Ballistics, 1983.
5 Yafu, F., Ning, W. Q., Sheng, J., Wei, J., "Experimental Measure of parameters : The Johnson-Cook Material Model of Extruded Mg-Gd-Y Series Alloy," Journal of applied mechanics, Vol. 77, 2010, pp 1902-1905.
6 Lapujoulade, F., Coffignal, G., Pimont., J., "Cutting forces evaluation during high speed milling," 2th conf. Ont. IDMME' 98, France, May 1998, pp 27-32.