Modeling of Rocket Motor Ballistics for Functionally Graded Propellants
MARYLAND UNIV COLLEGE PARK DEPT OF MECHANICAL ENGINEERING
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Functionally Graded Solid Rocket Propellants are being developed at NSWC-lndian Head in conjunction with the University of Maryland. The approach being used treats these propellants as typical Functionally Graded Materials FGMs, which by definition are structures that possess gradual variations in material behavior that enhance material andlor structural performance. For functionally graded propellants, Twin Screw Extrusion TSE processing is used to continuously vary the composition throughout a grain in a controlled manner. As a result, TSE processing allows the burning rates of propellants to be tailored as a function of burning web thickness. This in turn will allow for direct Thrust Magnitude Control TMC for a solid rocket motor, which has proven difficult to achieve in the past.
- Solid Rocket Propellants