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Article Dans Une Revue International Journal of Solids and Structures Année : 2022

Continuum damage analysis of delamination in composite laminates using a stress-based layerwise plate model

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Paul Bouteiller
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Jeremy Bleyer
Karam Sab

Résumé

This contribution addresses the modelling of delamination in a stress-based layerwise plate model. Such models benefit from a good representation of the local 3D stress field, especially inter-laminar stresses which are natural generalized stress unknowns arising in their derivation. We extend their construction to situations involving onset and propagation of interfacial delamination. We propose a variational formulation relying on a continuous damage description of the opening and sliding interfacial degradation processes using two damage variables. A mixed-mode delamination propagation criterion can be obtained through proper coupling between both variables. Finally, the model predictions are validated against classical delamination tests in pure and mixed modes.
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Dates et versions

hal-03639729 , version 1 (13-04-2022)

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Paul Bouteiller, Jeremy Bleyer, Karam Sab. Continuum damage analysis of delamination in composite laminates using a stress-based layerwise plate model. International Journal of Solids and Structures, 2022, pp.111611. ⟨10.1016/j.ijsolstr.2022.111611⟩. ⟨hal-03639729⟩
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