SCALAR NONLINEAR CONTINUUM DAMAGE MODELS FOR CERAMIC MATRIX COMPOSITES WITH SIGNIFICANT IN PLANE PLY ANISOTROPY - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

SCALAR NONLINEAR CONTINUUM DAMAGE MODELS FOR CERAMIC MATRIX COMPOSITES WITH SIGNIFICANT IN PLANE PLY ANISOTROPY

Résumé

Continuous fiber reinforced ceramic matrix composites (CMCs) are increasingly being employed in safety critical applications and the need the need for damage models to support the design, certification and sustainment has increased. In this work, we propose a simple but robust formulation for a 2D continuum damage model derived via a thermodynamics-based approach called openDM. Specifically, we consider a model with two scalar damage parameters that account for damage as a result of matrix cracking in the ply in both the fiber and transverse directions. The applicability of this model is considered for both a balanced 2D woven based SiC fiber reinforced composite and a 2D unidirectional ply based SiC fiber reinforced composite with predominately SiC matrices. While the response of the 2D woven composite was captured well with the two parameter model, the more anisotropic unidirectional ply based CMC was more difficult to capture unless a hybrid [0,90] ply was assumed in the model
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Dates et versions

hal-04485318 , version 1 (01-03-2024)

Identifiants

  • HAL Id : hal-04485318 , version 1

Citer

Craig Przybyla, Antoine Débarre, Jean-François Maire, Emmanuel Baranger, Frédéric Laurin. SCALAR NONLINEAR CONTINUUM DAMAGE MODELS FOR CERAMIC MATRIX COMPOSITES WITH SIGNIFICANT IN PLANE PLY ANISOTROPY. ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability, Jun 2022, Lausanne, Switzerland. ⟨hal-04485318⟩
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