Predicting the velocity and azimuth of fragments generated by the range destruction or random failure of rocket casings and tankageA calculational method is described which provides a powerful tool for predicting solid rocket motor (SRM) casing and liquid rocket tankage fragmentation response. The approach properly partitions the available impulse to each major system-mass component. It uses the Pisces code developed by Physics International to couple the forces generated by an Eulerian-modeled gas flow field to a Lagrangian-modeled fuel and casing system. The details of the predictive analytical modeling process and the development of normalized relations for momentum partition as a function of SRM burn time and initial geometry are discussed. Methods for applying similar modeling techniques to liquid-tankage-overpressure failures are also discussed. Good agreement between predictions and observations are obtained for five specific events.
Document ID
19880068211
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Eck, Marshall (Fairchild Space and Electronics Co. Germantown, MD, United States)
Mukunda, Meera (Fairchild Space Co. Germantown, MD, United States)