Influence of Fiber Strength and Stacking Sequences on Impact Damages of CFRP Composites

섬유강도와 적층구성이 CFRP적층판의 충격손상에 미치는 영향

  • 임광희 (우석대학교 반도체전기자동차공학부) ;
  • 박노식 (조선대학교 대학원) ;
  • 양인영 (조선대학교 기계공학부)
  • Published : 2001.05.01

Abstract

This paper aims at the evaluation on the characterization of CFRP laminate plates using falling weight impact tester. The experimentation was conducted on several laminates of different fiber and ply orientation. A system was built for the impact strength of CFRP laminates in consideration of stress wave propagation with using drop-weight impact tester as one of impact test. Absorbed energy of orthotropic composites with using T300 fiber, which are composed of the same fiber and stacking number is higher than that or quasi-isotropic specimen over impact energy 7J, but in case or using T700 fiber, much difference does not show. Also, absorbed energy of orthotropic composites with using T300 fiber, which are composed or stacking number and orientation became more than that of T700 fiber specimen; however great change doesn't show in case of quasi-isotropic specimens. It is found that influence was confirmed between impact energy and absorbed energy as the impact energy is increased with adding the falling weight.

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References

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