STP768

    Filament Wound Composite Thermal Isolator Structures for Cryogenic Dewars and Instruments

    Published: Jan 1982


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    Abstract

    Studies showing high tensile strength, low thermal conductivity, and adequate fatigue strength capabilities in conjunction with low resin outgassing properties of S-901 fiber glass with SCI REZ 080 and 081 epoxy resins has resulted in use of filament wound tension straps, struts, and conical shells as thermal isolators in several high-performance cryogenic applications. These thermal isolator structures and their use in the following cryogenic systems are discussed in this paper: hydrogen and oxygen dewars for space shuttle, helium tank for the infra-red astronomy satellite, spacecraft refrigerators, and infrared telescope. Mechanical and thermo-physical properties of the composite laminates are presented.

    Keywords:

    composite materials, structural composites, filament wound composite, cryogenic properties, thermal conductivity, glass fiber, epoxy resin, tensile strength, fatigue strength, thermal conductivity, outgassing


    Author Information:

    Morris, EE
    Senior vice-president, Structural Composites,


    Paper ID: STP29354S

    Committee/Subcommittee: D30.08

    DOI: 10.1520/STP29354S


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