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  4. Effect of cryogenic environments on failure of carbon fiber reinforced composites
 
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2021
Journal Article
Titel

Effect of cryogenic environments on failure of carbon fiber reinforced composites

Abstract
The present study is concerned with damage and failure of CFRP composites under isothermal mechanical loads in the ambient and cryogenic thermal regimes. In an experimental study, the mechanical failure behavior of unidirectionally carbon fiber reinforced materials is investigated at ambient temperature and in a liquid Helium environment at 4.2 K under a variety of loading conditions. The effect of thermally induced damage is investigated on specimens exposed to cryogenic temperature without external mechanical load and subsequent testing till failure at ambient temperature. Three different materials including high modulus and intermediate modulus high strength fibers as well as epoxy and thermoplastic (PEEK) matrix systems are considered. The results are employed to investigate the applicability of different standard composite failure criteria in the cryogenic regime.
Author(s)
Hohe, J.
Fraunhofer-Institut für Werkstoffmechanik IWM
Schober, M.
Fraunhofer-Institut für Werkstoffmechanik IWM
Fliegener, S.
Fraunhofer-Institut für Werkstoffmechanik IWM
Weiss, K.-P.
Karlsruhe Institute of Technology KIT
Appel, S.
European Space Agency ESA/ESTEC, Noordwijk, the Netherlands
Zeitschrift
Composites science and technology
Funder
European Space Agency ESA
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DOI
10.1016/j.compscitech.2021.108850
Language
English
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Fraunhofer-Institut für Werkstoffmechanik IWM
Tags
  • CFRP

  • cryogenic temperature...

  • damage and failure

  • failure criteria

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