Reference : On the micro-scale modelling by homogenization schemes in geomechanics

	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Civil engineering
	To cite this reference:	http://hdl.handle.net/2268/66652

Title :	On the micro-scale modelling by homogenization schemes in geomechanics
Language :	English
Author, co-author :	Levasseur, Séverine [Université de Liège - ULg > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur >]
	Collin, Frédéric [Université de Liège - ULg > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur >]
	Charlier, Robert [Université de Liège - ULg > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur >]
	Zhu, Qizhi [Université Paris Est > > > >]
	Kondo, Djimédo [Laboratoire de mécanique de Lille > > > >]
Publication date :	2010
Main document title :	USNCTAM 2010
On invitation :	No
Audience :	International
Event name :	16th US National Congress on Theoretical and Applied Mechanics USNCTAM 2010
Event date :	du 27 juin au 2 juillet 2010
Event organizer :	Penn State University
Event place (city) :	State College
Event country :	USA
Abstract :	[en] The mechanical behaviors of geomaterials are significantly affected by the presence of voids or cracks-like defects. The modeling of such behavior is classically performed by considering purely macroscopic or micromechanically-based damage models. In the perspective of applications in civil engineering or in geomechanics, we propose in this paper to evaluate a homogenization approach, based on Mori-Tanaka scheme, applied to micro-cracked materials. In order to provide an appropriate interpretation of the nonlinear behavior at macro-scale, the crack-induced damage is coupled to friction phenomena on closed cracks lips. The predictions of the coupled model are first analyzed on laboratory tests performed on Callovo-Oxfordian Clay. Then, they are extended to a numerical analysis of excavation damaged zones around tunnels
Permalink :	http://hdl.handle.net/2268/66652

	File(s) associated to this reference
	Fulltext file(s): File Commentary Version Size Access Restricted access USNCTAM2010-516.pdf Publisher postprint 86.29 kB Request copy

All documents in ORBi are protected by a user license.

 

© ULg Library Network |  Feedback |  ORBi legal notices

Dspace v1.5