Titre :

Damage mechanisms in bioactive glass matrix composites under uniaxial compression

Auteur(s) :

Jiang, Qifeng [Auteur]
Ismail, Jewan [Auteur]
Zairi, Fahmi [Auteur]
Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515
Qu, Zhengwei [Auteur]
Liu, Xiaobing [Auteur]
Zairi, Fahed [Auteur]

Titre de la revue :

Journal of the mechanical behavior of biomedical materials

Nom court de la revue :

J. Mech. Behav. Biomed. Mater.

Numéro :

79

Pagination :

264-272

Date de publication :

2018-03-01

ISSN :

1751-6161

Mot(s)-clé(s) :

Damage mechanisms
Computational homogenization
Composites
Bioactive glass
Continuum damage mechanics

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

The damage and crack resistance improvement of bioactive glass is of prime importance, particularly when applied to the repair of load-bearing bones. The present contribution is focused on the prediction of damage mechanisms ...
Lire la suite >The damage and crack resistance improvement of bioactive glass is of prime importance, particularly when applied to the repair of load-bearing bones. The present contribution is focused on the prediction of damage mechanisms and crack resistance under uniaxial compression of bioactive glass matrix composites reinforced with a particulate phase. In order to characterize the effects of voids and particles on the damage mechanisms and the macro-response, a two-step homogenization is performed by considering the two phases existing at two different scales: micro/meso through the homogenization of the porous matrix and then meso/macro through the periodic micro-field approach. The damage in the bioactive glass matrix is computed via an anisotropic stress-based damage model, implemented into a finite element program. Failure resulting of excessive damage accumulation in the bioactive glass matrix is predicted by a critical damage criterion combined with a vanishing element technique. The implication of particles in the toughening mechanism as well as the damage and crack resistance improvement in this class of porous biomaterials is highlighted via a parametric study using the proposed numerical model.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

IMT Lille Douai
INSERM
Institut Catholique Lille
Univ. Artois
Université de Lille

Collections :

• Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515
• Protéomique, Réponse Inflammatoire, Spectrométrie de Masse (PRISM) - U1192

Date de dépôt :

2022-06-15T13:58:27Z