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Flexural studies on asymmetric hybrid Kevlar fabric/epoxy composites

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Abstract

For composites reinforced with Kevlar fabrics, the method of asymmetric hybridization is employed for the improvement of flexural properties such as maximum fibre yield stress and modulus of elasticity in bending. Calculations based on the elastic-plastic analysis are used to assess the shift in the neutral axis during bending, and the bimaterial beam model is invoked to estimate the arrangement and replacement of Kevlar fibres by carbon fibres in the compression face, for two relative fibre orientations. Flexural properties of the bimaterial are compared with those of unmodified Kevlar/epoxy composite for three different loading rates. Scanning electron microscopic examination of the fracture features is discussed.

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References

  1. C. Zweben, J. Compos. Mater. 12 (1978) 422.

    Article  CAS  Google Scholar 

  2. J. R. Yeh and J. L. Teply, 22 (1988) 245.

  3. G. Marom and E. J. H. Chen, Compos. Sci. Tech. 29 (1987) 161.

    Article  CAS  Google Scholar 

  4. S. Amijima and T. Fuji, in Proceedings of an International Conference on Fracture Mechanics and Technology, Hong Kong, March 1977, edited by G. C. Sih and G. L. Chow (Sijhoff and Noordhoft, The Netherlands, 1977) Vol 1 p. 306.

    Google Scholar 

  5. K. Padmanabhan and Kishore, J. Mater. Sci. Lett. 9 (1990) 1109.

    Article  CAS  Google Scholar 

  6. S. Fischer and G. Marom, Fibre Sci. Tech. 20 (1984) 91.

    Article  CAS  Google Scholar 

  7. Ciba-Geigy, Information Sheet No. FTA, 46d, “Recommended Curing Schedules” (Ciba-Geigy, Cambridge, 1983), p. 5.

    Google Scholar 

  8. ASTM D 790 M, “Flexural properties of unreinforced and reinforced plastics and electrical insulating materials (Metric) — Standard Test Method” (ASTM, Philadelphia, 1984).

  9. M. Davidovitz, A. Mittleman, I. Roman and G. Marom, J. Mater. Sci. 19 (1984) 377.

    Article  CAS  Google Scholar 

  10. D. Purslow, Composites Oct 12 (1981) 246.

    Google Scholar 

  11. ASM “Metals Handbook”, 9th edn, Vol. 12, (ASM, Metals Park, Ohio, 1987) p. 480.

    Google Scholar 

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Authors and Affiliations

  1. Department of Metallurgy, Indian Institute of Science, 560 012, Bangalore, India

    K. Padmanabhan &  Kishore

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  1. K. Padmanabhan
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  2. Kishore
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Padmanabhan, K., Kishore Flexural studies on asymmetric hybrid Kevlar fabric/epoxy composites. J Mater Sci 27, 4282–4286 (1992). https://doi.org/10.1007/BF00541553

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  • DOI: https://doi.org/10.1007/BF00541553

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