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A new model for the behaviour of the multi-layer material interfaces

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III European Conference on Computational Mechanics

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Abstract

One of the current problems connected with multiplayer composite structures concerns the analysis of the distribution of the stresses around peculiarities (free edge and loaded edge) and at the interfaces of each layer. This work presents a new shear stress function in the form of the exponential function, to predict the mechanical behaviour of multi-layered laminated composite structures. As a case study, the mechanical behaviour of laminated composite beam (90°/0°/0°/90°) is examined. The results are compared with the model “Sinus” and 2D finite element method studied. Results show that this new model is more precise than older ones as compared to the results by the finite element analysis [Abaqus]. To introduce continuity on the interfaces of each layer, the kinematics defined by Ossadzow is used with new exponential model. The equilibrium equations and natural boundary conditions are derived by the principle of virtual power.

Variation of the stress σ13 through the thickness for a clamped free beam under distributed uniform load Present (-*-), Since7(-), Abaqus7(---)

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References

  1. C. Ossadzow, P. Muller, M. Touratier, Une Théorie Générale des Coques Composites Multicouches. Deuxième Colloque National en Calcul des Structures, Tome 1, Hermes, 1995.

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  2. M. Karama, K. S. Afaq, S. Mistou, Mechanical Behaviour of laminated composite beam by the new multi-layered laminated composite structures model with transverse shear stress continuity. International Journal Solide and Structures, 40 N°6, 1525–1546, 2003.

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Authors and Affiliations

  1. Laboratoire Génie de Production,Equipe CMAO,Groupe M2SF, ENIT,BP 1629, 65016, Tarbes Cedex, France

    M. Karama, K. S. Afaq & S. Mistou

Authors
  1. M. Karama
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  2. K. S. Afaq
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  3. S. Mistou
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Editor information

Editors and Affiliations

  1. Instituto Superior Técnico, Lisbon, Portugal

    C. A. Motasoares , J. A. C. Martins , H. C. Rodrigues , Jorge A. C. Ambrósio , C. A. B. Pina , C. M. Motasoares , E. B. R. Pereira  & J. Folgado , , , , , ,  & 

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© 2006 Springer

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Karama, M., Afaq, K.S., Mistou, S. (2006). A new model for the behaviour of the multi-layer material interfaces. In: Motasoares, C.A., et al. III European Conference on Computational Mechanics. Springer, Dordrecht. https://doi.org/10.1007/1-4020-5370-3_232

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  • DOI: https://doi.org/10.1007/1-4020-5370-3_232

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-4994-1

  • Online ISBN: 978-1-4020-5370-2

  • eBook Packages: EngineeringEngineering (R0)

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