저속충격을 받는 Carbon/Epox 적층판의 손상 해석

Failure Analysis on the Carbon/Epoxy Laminate Subjected to Low Velocity Impact

  • 이호철 (충남대학교 기계설계공학과) ;
  • 이영신 (충남대학교 기계설계공학과) ;
  • 김재훈 (충남대학교 기계설계공학과) ;
  • 전제춘 (국방과학연구소)
  • 발행 : 2000.11.01

초록

Recently, composite material which has much excellent mechanical characteristics has been applied in many industries. However, it has a brittle characteristic under impact condition and its invisible characteristics of the damaged area has been the motivation of many engineers investigation. The modified failure criterion is implemented to predict the failure behavior of the composite plate subjected to low velocity impact using commercial finite element analysis code, ABAQUS-Ver. 5.8. The new criterion is in good agreement with experimental results and can predict the failure behavior of the composite plate subjected to low velocity impact more accurately.