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Article Dans Une Revue Composites Part A: Applied Science and Manufacturing Année : 2018

Benchmarking of strength models for unidirectional composites under longitudinal tension

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Anthony R. Bunsell
Larissa Gorbatikh
  • Fonction : Auteur
Hannah Morton
  • Fonction : Auteur
Soraia Pimenta
  • Fonction : Auteur
Ian Sinclair
  • Fonction : Auteur
Mark Spearing
  • Fonction : Auteur
Yentl Swolfs
  • Fonction : Auteur
Alain Thionnet

Résumé

Several modelling approaches are available in the literature to predict longitudinal tensile failure of fibre-reinforced polymers. However, a systematic, blind and unbiased comparison between the predictions from the different models and against experimental data has never been performed. This paper presents a benchmarking exercise performed for three different models from the literature: (i) an analytical hierarchical scaling law for composite fibre bundles, (ii) direct numerical simulations of composite fibre bundles, and (iii) a multiscale finite-element simulation method. The results show that there are significant discrepancies between the predictions of the different modelling approaches for fibre-break density evolution, cluster formation and ultimate strength, and that each of the three models presents unique advantages over the others. Blind model predictions are also compared against detailed computed-tomography experiments, showing that our understanding of the micromechanics of longitudinal tensile failure of composites needs to be developed further.

Dates et versions

hal-01825602 , version 1 (28-06-2018)

Identifiants

Citer

Anthony R. Bunsell, Larissa Gorbatikh, Hannah Morton, Soraia Pimenta, Ian Sinclair, et al.. Benchmarking of strength models for unidirectional composites under longitudinal tension. Composites Part A: Applied Science and Manufacturing, 2018, 111, pp.138-150. ⟨10.1016/j.compositesa.2018.03.016⟩. ⟨hal-01825602⟩
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