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Evaluation of the Damage Mechanism in CFRP Composite Using Computer Vision

  • Kwon, Oh-Heon (Division of Safety Engineering, Pukyong National University) ;
  • Xu, Shaowen (Department of METEET, Geogia Southern University) ;
  • Sutton, Michael (Department of Mechanical Engineering, University of South Carolina)
  • Received : 2010.05.18
  • Accepted : 2010.06.09
  • Published : 2010.07.31

Abstract

Continuing progress in high technology has created numerous industrial applications for new advanced composite materials. Among these materials, carbon fiber-reinforced plastic (CFRP) laminate composite is typically used for low-weight carrying structures that require high specific strength. In this study, the damage mechanism of a compact tension (CT) specimen of woven CFRP laminates is described in terms of strain and displacement changes and crack growth behavior. The digital image correlation (DIC) method (which is employed here as a computer vision technique) is analyzed. Acoustic emission (AE) characteristics are also acquired during fracture tests. The results demonstrate the usefulness of these methods in evaluating the damage mechanism for woven CFRP laminate composites. From the results, we show these methods are so useful in order to evaluate the damage mechanism for woven CFRP laminate composites.

Keywords

References

  1. G. Lawcock and Y. Mai, "Progressive damage and residual strength of a carbon fiber enforced metal laminates", Journal of Composite Materials, vol. 31, no. 8, pp. 762-787, 1977.
  2. R. Harry and T. N. Massard, "An integrated micromechanics macro mechanics model for the prediction of the mechanical properties of woven materials", Proceedings of the International Conference on Composite Materials, pp. 267-270, 1991.
  3. F. Le'ne' and P. Paumelle, "Micro mechanism of damage in woven composite", Composite Material Technology ASME vol. 45, pp. 97-105, 1992.
  4. F. Gao, L. Boniface, S. L. Ogin, P. A. Smith and R. Greaves, "Damage accumulation in woven-fabric CFRP laminates under tensile loading", Composites Science and Technology, vol. 59, pp. 123-136, 1999. https://doi.org/10.1016/S0266-3538(97)00231-5
  5. M. A. Sutton, W. J. Wolter, W. H. Peters, W. F. Ranson and S. R. McNeil, "Determination of displacement using an improved digital image correlation method", Image Vision Computer vol. 1, no. 3, pp. 133-139, 1983. https://doi.org/10.1016/0262-8856(83)90064-1

Cited by

  1. Evaluation of tensile strengths and fracture toughness of plain weave composites vol.37, pp.8, 2013, https://doi.org/10.5916/jkosme.2013.37.8.862
  2. 미소균열 측정에 대한 DIC 스펙클 형상의 영향 vol.34, pp.4, 2010, https://doi.org/10.14346/jkosos.2019.34.4.15