Reference : A finite element method for poro mechanical modelling of geotechnical problems using ...
Scientific journals : Article
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/431
A finite element method for poro mechanical modelling of geotechnical problems using local second gradient models
English
Collin, Frédéric mailto [Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur]
Chambon, René [Université Joseph Fourier de Grenoble > Laboratoires 3S-R > > >]
Charlier, Robert mailto [Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géomécanique et Géologie de l'Ingénieur > >]
2006
International Journal for Numerical Methods in Engineering
John Wiley & Sons Ltd
65
11
1749-1772
Yes (verified by ORBi)
International
0029-5981
Chichester
[en] finite element ; Lagrange multipliers ; second gradient models ; localization ; post localization ; poromechanics ; hydromechanics
[en] In this paper, a new finite element method is described and applied. It is based on a theory developed to model poromechanical problems where the mechanical part is obeying a second gradient theory. The aim of such a work is to properly model the post localized behaviour of soils and rocks saturated with a pore fluid. Beside the development of this new Coupled theory, a corresponding finite element method has been developed. The elements used are based on a weak form of the relation between the deformation gradient and the second gradient, using a field of Lagrange multipliers. The global problem is solved by a system of equations where the kinematic variables are fully coupled with the pore pressure. Some numerical experiments showing the effectiveness of the method ends the paper. Copyright (c) 2005 John Wiley
Fonds National de la Recherche Scientifique FNRS
Researchers ; Professionals
http://hdl.handle.net/2268/431
10.1002/nme.1515

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