Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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An Estimation of Deformation for Composites by DIC

DIC에 의한 복합재료 변형측정

  • Kwon, Oh-Heon (Department of Safety Engineering, Pukyong National University) ;
  • Kang, Ji-Woong (Faculty of Health Science, Daegu Haany University)
  • 권오헌 (부경대학교 안전공학과) ;
  • 강지웅 (대구한의대학교 보건학부)
  • Received : 2014.02.14
  • Accepted : 2014.06.09
  • Published : 2014.08.31
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Abstract

The estimation of deformation and strain for the twill-weave carbon fiber reinforced plastic composite(CFRP) during the test with a digital image correlation system were implemented experimentally. The carbon fiber reinforced plastic composites have been developed as the edge technology materials. The plain, twill and satin weave types are commonly used for the CFRP composites. Thus, it is essential to find the deformation characteristics for those types of CFRP more easily. Especially the DIC method can express the visual strain distributions at the full range of the interested areas in the structures. In this study, the mechanical properties of twill-weave CFRP composite and the variation of strains in a full field of the specimen were estimated. The experiments were performed under a tensile loading and 3-point bending test with strain gages. Futhermore the DIC deformation results were estimated for the comparison. The results showed the deformation and strain contours visually well in all region of the interested areas and so usefulness for the safety control of the structures.

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