Constitutive modeling of anisotropic plasticity with application to fiber-reinforced composites

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This article proposes two constitutive models to describe the nonlinear, elastic-plastic behavior of unidirectional fiber-reinforced composites at the meso-level. Key ingredients are the formulation of two anisotropic yield functions with the aid of representation theorems (invariant formulation), and the set-up of governing equations for plastic variables with respect to associative and non-associative flow response. The governing equations are solved using an elastic predictor-plastic corrector algorithm which imposes the constraint posed by the yield condition. Both the models are evaluated qualitatively and quantitatively by comparison to micromechanics simulations as well as to experimental data.
Original languageEnglish
Pages (from-to)84-96
Number of pages13
JournalInternational journal of solids and structures
Issue number15 December
Early online date4 Jul 2019
Publication statusPublished - 15 Dec 2019


  • Anisotropy
  • Fiber-reinforced composites
  • Plasticity theory

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