Static fatigue life of Kevlar aramid/epoxy pressure vessels at room and elevated temperatures
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Schmidt, W. W.↗
Engineering topics
Schmidt, W. W.
Publications and source records attributed to Schmidt, W. W..
Ultra-lightweight pressure vessels
Composite tanks fabricated from two metal spheres which are pressure welded and then overwrapped with plastic composite are 66 percent lighter than similar all-metal vessels. Overwrap minimizes shrapnel effects, shifts failure mode to that of cyclic leakage, and withstands minimum burst pressure.
Schmidt, W. W.↗
Fabrication of graphite/epoxy cases for orbit insertion motors
The fabrication procedures are described for filament-wound rocket motor cases, approximately 26.25 inches long by 25.50 inches diameter, utilizing graphite fibers. The process utilized prepreg tape which consists of Fortafil 4-R fibers in the E-759 epoxy resin matrix. This fabrication effect demonstrated an ability to fabricate high quality graphite/epoxy rocket motor cases in the 26.25 inch by 25.50 inch size range.
Schmidt, W. W.↗
Filament-wound graphite/epoxy rocket motor case
The fabrication procedures are described for a filament-wound rocket motor case, approximately 56 cm long x 71 cm diameter, utilizing high tensile strength graphite fibers. The process utilized Fiberite Hy-E-1330B prepreg tape which consists of Courtaulds HTS fibers in a temperature-sensitive epoxy matrix. This fabrication effort, with resultant design, material and process recommendations, substantiates the manufacturing feasibility of graphite/epoxy rocket motor cases in the 56 cm x 71 cm size range.
Humphrey, W. D.↗