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Shape Optimization of Holes in Composite Shear Panels

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Book cover Structural Optimization

Abstract

The aim of this work is to find optimum shapes of holes in shear panels made of carbon/epoxy composite materials. The study is restricted to non-buckling shear panels, and a simplified fracture criterion is applied. Starting with a baseline square shear panel with a circular hole, the optimization results in a larger non-circular hole that gives the same maximum stress level in the laminate. Optimum shaped holes are determined for four different laminate configurations, the differences between the shapes being small.

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References

  1. B. Esping: ‘The OASIS Structural Optimization System’, Computers & Structures 23 (1986), pp 365–377.

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  2. L. A. Carlsson & R. B. Pipes: Experimental Characterization of Advanced Composite Materials. Prentice-Hall 1987.

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  3. R. M. Jones: Mechanics of Composite Materials. Scripta 1975.

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  4. J. M. Whitney & R. J. Nuismer: ‘Stress Fracture Criteria for Laminated Composites Containing Stress Concentrations’, Journal of Composite Materials 8 (1974), pp 253–265.

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  5. J. Bäcklund & C. G. Aronsson: ‘Tensile Fracture of Laminates with Holes’, Journal of Composite Materials 20 (1986), pp 259–286.

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  6. B. Esping & D. Holm: ‘A CAD Approach to Shape Optimization’, in Computer Aided OptimalDesign: Structural and Mechanical Systems (ed C A Mota), Springer 1987.

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Author information

Authors and Affiliations

  1. Department of Aeronautical Structures and Materials, The Royal Institute of Technology, S-100 44, Stockholm, Sweden

    Jan Bäcklund & Rikard Isby

Authors
  1. Jan Bäcklund
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  2. Rikard Isby
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Editor information

Editors and Affiliations

  1. Department of Structural Design, Essen University, Universitätstraße 15, 4300, Essen 1, Germany

    G. I. N. Rozvany

  2. School of Civil and Mining Engineering, The University of Sydney, Sydney, NSW, 2006, Australia

    B. L. Karihaloo

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© 1988 Kluwer Academic Publisher

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Bäcklund, J., Isby, R. (1988). Shape Optimization of Holes in Composite Shear Panels. In: Rozvany, G.I.N., Karihaloo, B.L. (eds) Structural Optimization. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1413-1_2

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  • DOI: https://doi.org/10.1007/978-94-009-1413-1_2

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-7132-1

  • Online ISBN: 978-94-009-1413-1

  • eBook Packages: Springer Book Archive

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