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

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Fatigue Life Predication of Impacted Laminates Under Block Loading

블록하중을 받는 충격손상 적층복합재료의 피로수명 예측

  • Published : 2001.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents the fatigue behavior of composite materials with impact-induced damage under 2 level block loading. For this purpose, the 2 level block loading fatigue tests were performed on the impacted composite laminate. The fatigue life of the laminate under the block loading is greatly influenced by the impact damage; the effect of impact damage can be characterized by the present impact damage parameter. Based on this parameter, the model is developed to predict the fatigue life under block loading and the results by this model agree well with experimental results regardless of applied impact energy. Also, stochastic model is established to describe the variation of cumulative damage behavior and fatigue life due to the material nonhomogeneity.

Keywords

References

  1. Abrate, S., 1991, 'Impact on Laminated Composite Materials,' Applied Mechanics Rev. Vol. 44, No 4, pp 155-190
  2. Gray, T. D., 1975, 'Foreign Object Damage and Fatigue Interaction in Unidirectional Boron/Aluminum-6061,' ASTM STP 569, pp. 262-279
  3. Tai, N.H., Yip, M.C. and Lin, J.L., 1998, 'Effects of Low-energy Impact on the Fatigue Behavior of Carbon/Epoxy Composites,' Composites Science and Technology, Vol. 58, No. 1, pp. 1 - 8 https://doi.org/10.1016/S0266-3538(97)00075-4
  4. Ramkumar, R. L., 1983, 'Effect of Low-Velocity Impact Damage on the Fatigue Behavior of Graphite/Epoxy Laminates,' ASTM STP 813, pp. 116-135
  5. Beheshty, M.H. and Harris, B., 1998, 'A Constant-Life Model of Fatigue Behavior for Carbon-Fibre Composites: The Effect of Impact Damage,' Composites Science and Technology, Vol. 58, No. 1, pp. 9 - 18 https://doi.org/10.1016/S0266-3538(97)00121-8
  6. 김정규, 강기원, '충격손상을 가진 CFRP 적층복합재료의 피로수명예측모델,' 대한기계학회논문집 A 권, 제 24권, 제 11호, pp. 2828-2835
  7. Yang, J.N. and Jones, D.L., 1980, 'Effect of Load Sequence on the Statistical Fatigue of Composites,' AIAA Journal, Vol. 18, No. 12, pp. 1525-1531
  8. Tanaka, S., Ichikawa, M. and Akita, S., 1984, 'A Probabilistic Inverstigation of Fatigue Life and Cumulative Cycle Ratio,' Engineering Fracture and Mechanics, Vol. 20, No. 3, pp. 501-513 https://doi.org/10.1016/0013-7944(84)90055-9
  9. Ni, K. and Zhang, S., 2000, 'Fatigue ReliabilityAnalysis under Two-Stage Loading,' Reliability Engineering and System Safety, Vol. 68, pp. 153-158 https://doi.org/10.1016/S0951-8320(00)00009-0
  10. Tai, N.H., Yip, M.C. and Lin, J.L., 1998, 'Effects of Low-energy Impact on the Fatigue Behavior of Carbon/Epoxy Composites,' Composites Science and Technology, Vol. 58, No. 1, pp. 1 - 8 https://doi.org/10.1016/S0266-3538(97)00075-4
  11. ASTM D 3039-93, 'Standard Test Method for Tensile Properties of Fiber Resin Composite'
  12. Broutman, L. J. and Sahu, S., 1972, 'A New Theory to Predict Cumulative Fatigue Damage in Fiberglass Reinforced Plastics,' ASTM STP 497, pp. 170-188
  13. Hwang, W. and Han, K.S., 1989, 'Fatigue of Composite Materials-Damage Model and Life Prediction,' ASTM STP 1012, pp. 87-102