대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제23권11호
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  • Pages.1886-1895
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  • 1999
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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복합적층판의 층간파괴에 미치는 충격하중속도의 효과

Effects of Impact Loading Rate on the Delamination Behavior of Composite Laminates

  • 발행 : 1999.11.01
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초록

The delamination behavior of multidirectional carbon-fiber/epoxy composite laminates under 10NA intermediate and high rates of test, up to rate of about 11.4m s has been investigated using the double cantilever beam specimens. The mode I loading under rates above l.0m/s showed considerable dynamic effects on the load-time curves and thus higher values of the average crack velocity than that expected from a simple proportional relationship with the test rate. The modified beam analysis utilizing only the opening displacement and crack length exhibited an effective means for evaluating the dynamic fracture energy $G_{IC}$. Based on the assumption of constant flexural modulus, values of $G_{IC}$ at the crack initiation and arrest were decreased with an increase of the test rate up to 5.7m/s, but the maximum $G_{IC}$ was increased at 11.4m/s.

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참고문헌

  1. Journal of Composite Materials v.21 Rate Effects on Mode I Interlaminar Fracture Toughness in Composite Materials Smiley, A. J.;Pipes, R. B.
  2. Journal de Physique III France Mechanical Characterization of Polymers and Composites with a Servohydraulic High-Speed Tensile Testerk Beguelin, Ph.;Barbezat, M.;Kausch, H. H.
  3. Delamination and Debonding of Materials Effects of Strain Rate on Delamination Fracture Toughness of Graphite/Epoxy Aliyu, A. A.;Daniel, I. M.
  4. Journal of Materials Science v.30 The Failure of Fiber Composites and Adhesively Bonded Fiber Composites under High Rates of Test Part I: Mode I Loading-Experimental Studies Blackman, B. R. K.;Dear, J. P.;Kinloch, A. J.;Macgillivray, H.;Wang, Y.;Williams, J. G.;Yayla, P.
  5. KSME International Journal v.12 A Study on Residual Fatigue Bending Strength and Damage Behavior of CFRP Composites Subjected to Impact Loadings Im, K. -H.;Kim, J. -H.;Yang, I. -Y.
  6. KSME International Journal v.11 Experimental Investigation on Low Energy Impact Behavior of Foam Cored Sandwich Composites Yoon, S. H.;Kwon, Y. W.;Clawson Jr., L. A.
  7. 대한기계학회논문집A권 v.22 no.3 모드I 하중조건하에 있는 다방향적층복합재료의 충간파괴거동 최낙삼;Kinloch, A. J.
  8. Composites Science and Technology v.37 Mechanics and Mechanisms of Delamination in a Poly(ether sulphone)-Fiber Composite Hashemi, S.;Kinloch, A. j.;Williams, J. G.
  9. 한국복합재료학회지 충격하중하의 다방향복합적충판의 충간파괴에너지에 미치는 굽힘탄성계수와 섬유가교의 효과 최낙삼;Kinloch, A. J.
  10. ASTM standard E-399