CHARACTERIZATION OF E-GLASS PHENOLIC COMPOSITE AS ABLATIVE LINER FOR FLEX NOZZLES AND JET DEFLECTOR
Keywords:
Ablative Liner, Prepreg, Phenolic ResinAbstract
The E-glass fabric with thickness of 0.78 to 0.81 mm is impregnated with phenolic resin in the vertical impregnation plant. The laminate is made and the complete characterization is done in terms of physical, mechanical and thermal properties. The physical properties like density, fiber and resin content, barcol hardness. The thermal properties like Oxy-acetylene torch test to estimate erosion rate. The mechanical properties like tensile strength and modulus, Compression strength and modulus, flexural strength & modulus, In-plane shear strength and modulus, ILSS etc. The rocket exhaust gas is of high temperature, the structural steel members of nozzle should be protected from hot gases by highly erosion resistant thermal liners. For this purpose, ablative composite liners made up of Phenolic resin matrix combined with reinforcement material like E-glass used. The jet deflector is used to deflect the exhaust plume of solid rocket motors for vertically launch missiles. This paper briefs about the material characterization of this material for all the necessary physical, mechanical and thermal tests conducted on the laminate to qualify this material for use as ablative liner for flex nozzles and jet deflector.
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References
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