November 03 (Friday)
신뢰성부문 포스터
Poster,
3층 로비,
14:10~15:00
  • Chair :
  •  손영갑(안동대), 오현석(광주과기원)
Fr16D-14
14:10~15:00
Strain field characterization of impact damage in GFRP laminates using DIC measurement
김종일, 허용학(한국표준과학연구원), 김용환(충남대학교)
Full-field strain around impact damage in GFRP(Glass-fiber Reinforced Plastics) laminates under tensile load has been characterized by DIC(Digital Image Correlation) technique. In this study, tensile specimens were prepared from two different GFRP laminates with the respective different fiber direction, UD and TRI (uni-directional and three-directional). Two different impact damages were introduced into the respective specimens by a drop weight testing system with pyramidal and hemispherical impactor tip. In order to investigate a severity of the damage size, the respective damages were made with three different impact energy levels of 4J, 6J and 8J. The strain fields around the respective damages were determined from the DIC images acquired with 3D DIC technique. So, in this study, dependency of the strain fields on the laminate direction, impact shapes and severity of the damage could be examined.
Keywords : Impact damage(충격 손상), Tensile test(인장 시험), Full-field strain(변형률장), DIC(Digital Image Correlation technique, 영상상관기법)
Paper : Fr16D-14.pdf

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