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An Algorithm to compute damage from load in composites

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Abstract

We present a new method to model fracture of concrete based on energy minimisation. The concrete is considered on the mesoscale as composite consisting of cement paste, aggregates and micro pores. In this first step, the alkali-silica reaction is taken into account through damage mechanics though the process is more complex involving thermo-hygro-chemo-mechanical reaction. We use a non-local damage model that ensures the well-posedness of the boundary value problem (BVP). In contrast to existing methods, the interactions between degrees of freedom evolve with the damage evolutions. Numerical results are compared to analytical and experimental results and show good agreement.

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Authors and Affiliations

  1. Department of civil engineering, University of Toronto, Galbraith building, Toronto, M5S 1A4, Canada

    Cyrille F. Dunant

  2. Laboratory of Construction Materials, EPFL, Lausanne, Switzerland

    Stéphane P. A. Bordas, Pierre Kerfriden & Karen L. Scrivener

  3. Institute of Structural Mechanics, Chair of Computational Mechanics, Bauhaus University Weimar, Weimar, 99423, Germany

    Timon Rabczuk

Authors
  1. Cyrille F. Dunant
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  2. Stéphane P. A. Bordas
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  3. Pierre Kerfriden
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  4. Karen L. Scrivener
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  5. Timon Rabczuk
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Corresponding author

Correspondence to Timon Rabczuk.

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Dunant, C.F., Bordas, S.P.A., Kerfriden, P. et al. An Algorithm to compute damage from load in composites. Front. Archit. Civ. Eng. China 5, 180–193 (2011). https://doi.org/10.1007/s11709-011-0107-9

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  • DOI: https://doi.org/10.1007/s11709-011-0107-9

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