IMPROVEMENT STUDY ON UNLINEDFILAMENT-WOUND COMPOSITE TANK DESIGNED FORCRYOGENIC PROPELLANTS

摘要

Feasibility investigations of CFRP composite as applied to unlined CFRP cryogenic propellant tankfor reusable vehicle systems have been conducted by National Space Development Agency of Japan(NASDA). Reflecting the results of the first two phases of pressurization test on small prototypefilament-wound (FW) tank with 300mm diameter conducted from room temperature to liquid nitrogentemperature, the improved third phase of FW tank were conducted and the result was reported in thispaper. As a part of the investigations, elementary assessments on the temperature-dependence ofCFRP shear performance and strength performance of the promising adhesive material EA9394 weresimultaneously executed from room temperature to cryogenic temperatures and the results were alsoreported here.