Evaluation of cryogenic shear performance of CFRP laminates

Jianmei He, Yoshiki Morino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study seeks to understand the shear performance of CFRP laminates over a wide temperature range including the cryogenic temperatures (lower than -150°C). Experimental evaluations using the v-notched specimens (Iosipescu shear test) to determine the in-plane and out-of-plane (inter-laminar) shear properties (modulus and strength) of CFRP laminates were conducted at three different temperatures (room temperature, -70°C and -160°C). Epoxy-toughened BESFIGHT IM600/#133 CFRP prepreg sheets were used as the material system for experimental investigation. Different correction factors of the v-notched specimens for in-plane and inter-laminar shear modulus determinations at different temperatures were obtained from analytical simulations and they were used to modify the experimental results of shear modulus. It concluded that the cryogenic shear modulus of CFRP laminates for both in-plane and inter-laminar shear becomes about twice of that at room temperature. Failure mechanisms of the in-plane and inter-laminar specimens at different temperatures were also discussed from the experimentally obtained rupture strength. We concluded that the failure strength of inter-laminar specimens becomes higher as the temperature decreases to cryogenic temperatures.

Original languageEnglish
Title of host publication44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Publication statusPublished - 2003
Externally publishedYes
Event44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003 - Norfolk, VA
Duration: 2003 Apr 72003 Apr 10

Other

Other44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003
CityNorfolk, VA
Period03/4/703/4/10

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Architecture

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  • Cite this

    He, J., & Morino, Y. (2003). Evaluation of cryogenic shear performance of CFRP laminates. In 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference