Modeling multiaxial damage regional variation in human annulus fibrosus

Tamoud, Abderrahman; Zairi, Fahmi; Mesbah, Amar; Zairi, Fahed

Type de document :

Article dans une revue scientifique: Article original

DOI :

10.1016/j.actbio.2021.09.017

PMID :

34547514

URL permanente :

http://hdl.handle.net/20.500.12210/75258

Titre :

Modeling multiaxial damage regional variation in human annulus fibrosus

Auteur(s) :

Tamoud, Abderrahman [Auteur]
Laboratoire de Mécanique Multiphysique Multiéchelle [LaMcube]
Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
Zairi, Fahmi [Auteur]

Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515
Mesbah, Amar [Auteur]
Zairi, Fahed [Auteur]

Protéomique, Réponse Inflammatoire, Spectrométrie de Masse (PRISM) - U1192

Titre de la revue :

Acta biomaterialia

Nom court de la revue :

Acta Biomater

Date de publication :

2021-09-18

ISSN :

1878-7568

Mot(s)-clé(s) :

Multiaxial damage and failure
Annulus fibrosus
Regional dependence
Multiscale structure

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

In the present article, a fully three-dimensional human annulus fibrosus model is developed by considering the regional variation of the complex structural organization of collagen network at different scales to predict ...
Lire la suite >In the present article, a fully three-dimensional human annulus fibrosus model is developed by considering the regional variation of the complex structural organization of collagen network at different scales to predict the regional anisotropic multiaxial damage of the intervertebral disc. The model parameters are identified using experimental data considering as elementary structural unit, the single annulus lamellae stretched till failure along the micro-sized collagen fibers. The multi-layered lamellar/inter-lamellar annulus model is constructed by considering the effective interactions between adjacent layers and the chemical-induced volumetric strain. The regional dependent model predictions are analyzed under various loading modes and compared to experimental data when available. The stretching along the circumferential and radial directions till failure serves to check the predictive capacities of the annulus model. Model results under simple shear, biaxial stretching and plane-strain compression are further presented and discussed. Finally, a full disc model is constructed using the regional annulus model and simulations are presented to assess the most likely failed areas under disc axial compression. STATEMENT OF SIGNIFICANCE: The damage in annulus soft tissues is a complex multiscale phenomenon due to a complex structural arrangement of collagen network at different scales of hierarchical organization. A fully three-dimensional constitutive representation that considers the regional variation of the structural complexity to estimate annulus multiaxial mechanics till failure has not yet been developed. Here, a model is developed to predict deformation-induced damage and failure of annulus under multiaxial loading histories considering as time-dependent physical process both chemical-induced volumetric effects and damage accumulation. After model identification using single lamellae extracted from different disc regions, the model predictability is verified for various multiaxial elementary loading modes representative of the spine movement. The heterogeneous mechanics of a full human disc model is finally presented.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

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

Collections :

Date de dépôt :

2022-06-15T14:00:40Z
2023-02-24T17:25:28Z

Historique des modifications

Numéro de version	Lien	Date de modification
3	20.500.12210/75258	2025-04-01T11:06:38Z
2	20.500.12210/75258.2*	2023-02-24T17:25:12Z
1	20.500.12210/75258.1	2022-06-15T14:00:40Z

*Version sélectionnée

Modeling multiaxial damage regional variation ...

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Modeling multiaxial damage regional variation ... BibTeX CSV Excel RIS

Information

Historique des modifications

Modeling multiaxial damage regional variation ...

BibTeX

CSV

Excel

RIS