ORBi: Mengoni Marlène - A non-linear homogeneous model for bone-like materials under compressive load.

Reference : A non-linear homogeneous model for bone-like materials under compressive load.


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Multidisciplinary, general & others Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/2268/83434

Title :	A non-linear homogeneous model for bone-like materials under compressive load.
Language :	English
Author, co-author :	Mengoni, Marlène [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Milieux continus et thermomécanique >]
	Voide, Romain [ETH Zurich > Institute for Biomechanics > > >]
	Toye, Dominique [Université de Liège - ULg > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques >]
	Léonard, Angélique [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Procédés et développement durable >]
	van Lenthe, Gerrit Hendrik [Katholieke Universiteit Leuven - KUL > Department of Mechanical Engineering > Biomechanics and Engineering Design Section - BMGO > >]
	Ponthot, Jean-Philippe [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
Publication date :	2011
Main document title :	Conference Proceedings - 2nd International Conference on Computational & Mathematical Biomedical Engineering
Editor :	Nithiarasu, P.
	Löhner, R.
	van Loon, R.
	Sazonov, I.
	Xie, X.
Pages :	355-358
On invitation :	No
Audience :	International
ISBN :	978-0-9562914-1-7
City :	Swansea
Country :	UK
Event name :	2nd International Conference on Computational & Mathematical Biomedical Engineering
Event organizer :	George Mason University
Event place (city) :	Washington D.C.
Event country :	USA
Keywords :	[en] trabecular bone ; fabric ; anisotropy
Abstract :	[en] Using morphological data provided by computed tomography, finite element (FE) models can be used to compute the mechanical response of bone and bone-like materials without describing the complex local microarchitecture. A constitutive law is here developed and proposed for this purpose. It captures the non-linear structural behavior of bone-like materials through the use of fabric tensors. It also allows for irreversible strains using a plastic material model, allowing hardening of the yield parameters. These characteristics are expressed in a constitutive law based on the anisotropic continuum damage theory coupled with isotropic elastoplasticity in a finite strains framework. This law is implemented into Metafor, a non-linear FE software. Simulations of cylindrical samples undergoing stepwise compression are presented.
Permalink :	http://hdl.handle.net/2268/83434

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