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Optimization of Aligned Fiber Laminate Composites

Design in the Presence of a Stress Concentration

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IUTAM Symposium on Evolutionary Methods in Mechanics

Part of the book series: Solid Mechanics and Its Applications ((SMIA,volume 117))

Abstract

A fundamental problem in the design of laminate composites is strength degradation in the presence of stress concentrating features such as flaws and attachment holes. This paper presents a scheme for optimizing material design so as to maximize strength in the presence of flaws. This optimization occurs over a landscape littered with local maxima, which is reliably traversed by a heuristic approach such as a genetic algorithm. A simple example is presented which highlights the benefits and drawbacks of considering flaw tolerance in laminate design.

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References

  1. Budiansky, B., J.W. Hutchinson, and A.G. Evans, “On Neutral Holes in Tailored, Layered Sheets,” J. Applied Mechanics, 60, 1993, 1056–7.

    Google Scholar 

  2. Genin, G.M., and J.W. Hutchinson, “Composite Laminates in Plane Stress: Constitutive Modeling and Stress Redistribution Due to Matrix Cracking,” Journal of the American Ceramic Society, 80(5), 1997, p. 1245–55.

    Google Scholar 

  3. Genin, G.M., and J.W. Hutchinson, “Failures at Attachment Holes in Brittle Matrix Laminates,” Journal of Composite Materials, 33(17), 1999, 1600–1619.

    Google Scholar 

  4. Green, A.E., and W. Zerna, Theoretical Elasticity, London: Oxford University Press, 1968, 350–351.

    Google Scholar 

  5. Gürdal, Z., R.T. Haftka, and P. Hajela, Design and Optimization of Laminated Composite Materials, New York: Wiley, 1999.

    Google Scholar 

  6. Heredia, F.E., S.M. Spearing, T.J. Mackin, M.Y. He, A.G. Evans, P. Mosher, and P. Brønsted, “Notch Effects in Carbon Matrix Composites,” Journal of the American Ceramic Society, 77, 2817–2827 (1994).

    Article  Google Scholar 

  7. Jones, R., Mechanics of Composite Materials, New York: McGraw-Hill, 1975. Lekhnitskii, S.G., Anisotropic Plates, Trans. by S. W. Tsai and T. Cheron, New York: Gordon and Breach, 1968.

    Google Scholar 

  8. McNulty, J., F. W. Zok, G. M. Genin, and A. G. Evans, “Notch-Sensitivity of Fiber-Reinforced Ceramic Matrix Composites: Effects of Inelastic Straining and Volume-Dependent Strength,” Journal of the American Ceramic Society, 82(5), 1999, 1217–28.

    Google Scholar 

  9. Rubin, A.M., unpublished material data, The Boeing Company, 2000.

    Google Scholar 

  10. Savin, G.N., Stress Concentration around Holes, Trans. by W. Johnson. New York: Pergamon, 1961.

    Google Scholar 

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© 2004 Kluwer Academic Publishers

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Hu, Z., Genin, G.M., Jakiela, M.J., Rubin, A.M. (2004). Optimization of Aligned Fiber Laminate Composites. In: Burczyński, T., Osyczka, A. (eds) IUTAM Symposium on Evolutionary Methods in Mechanics. Solid Mechanics and Its Applications, vol 117. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2267-0_12

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  • DOI: https://doi.org/10.1007/1-4020-2267-0_12

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-2266-1

  • Online ISBN: 978-1-4020-2267-8

  • eBook Packages: Springer Book Archive

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