René CHAMBON Professor Université Joseph Fourier Grenoble 1  (Institut Universitaire de Technologie)
	Postal Address:		Laboratoire 3S  Sols Solides Structures   Domaine Universitaire B.P. 53   38041 Grenoble Cedex 9 FRANCE
	tel		(33) 4 76 82 51 69
	fax		(33) 4 76 82 70 00
	e-mail		Rene.Chambon@hmg.inpg.fr
	Research position  Research topics  Publications

Research Position

• Member of the team :

Déformation et rupture dans les géomatériaux
of the laboratory
Sols Solides Structures

• Head of the Grenoble Ph. D. Program Mechanics and Energetics
• Former director of the European ALERT school (1994-1997)

Research topics

Rupture and straining in geomaterials :

• Soils and rocks behavior
• Constitutive equations (Hypoplasticity CLoE models, ..., Interface models,)
• Constitutive equations for second gradient models (Hypoplasticity, elastoplasticity, Large strain hyperelastoplastic second gradient models)
• Theoretical study of non linear boundary value problems, Bifurcation
• Large strain numerical modeling (classical and second gradient models)
• Strain localization analysis
• Post localization analysis (Daphnis interface model, Local second gradient models)
• Localization and post localization for coupled hydromechanical problems

Recent Publications 
Papers
Congress Proceedings
 

 
Papers

• Chambon R., Caillerie D., El Hassan N., (1996) Etude de la localisation unidimensionnelle à l'aide d'un modèle de second gradient, C.R.A.S-Série II b vol.323, pp. 231-238
• Desrues J., Chambon R., Mokni M., Mazerolle F., (1996) Void ratio evolution inside shear bands in triaxial sand specimens studied by computed tomography, Géotechnique vol.46 No 3, pp. 529-546
• Chambon R., Crochepeyre S., (1998) Daphnis a new model for the description of post-localization behaviour: Application to sands, Mechanics of Cohesive-Frictionnal Materials vol.3 No 2, pp. 127-153
• Chambon R., Caillerie D., El Hassan N., (1998) One dimensional localisation studied with a second grade model, European Journal of Mechanics A/Solids Vol 17 No 4, pp. 637-656
• Chambon R., Caillerie D., (1999) Existence and uniqueness theorems for boundary value problems involving incrementally non linear models, International Journal of Solids and Structures Vol 36, pp5089-5099
• Chambon R., Caillerie D., Desrues J., Crochepeyre S., (1999) A comparison of incremental behavior of elastoplastic and CLoE models, International Journal for Numerical and Analytical Methods in Geomechanics Vol 23 No 4, pp 295-316
• Chambon R., Crochepeyre S., Desrues J.,  (2000) Localization criteria for non-linear constitutive equations of geomaterials, Mechanics of Cohesive-Frictionnal Materials  vol.5, pp. 61-82
• Matsushima T., Chambon R., Caillerie D., (2000) Second gradient models as a particular case of microstructured models: a large strain finite element anlysis, C.R.A.S-Série II b vol.328, pp.179-186
• Tamagnini C., Vigianni C., Chambon R., Desrues J., (2000) Evaluation of different strategies for the integration of hypoplastic constitutive equations. Application to the CLoE model, Mechanics of Cohesive-Frictionnal Materials Vol 5, pp263-289
• Chambon R., (2000) General presentation of constitutive modelling of geomaterials, Revue Française de Génie Civil Vol 4 n°5, pp 9-31
• Chambon R., Crochepeyre S., Charlier R., (2001) An algorithm and a method to search bifurcation points in nonlinear problems, International Journal for Numerical Methods in Engineering 51, pp 315-332
• Chambon R., Caillerie D, Matsushima T. (2001), Plastic continuum with microstructure, local second gradient theories for geomaterials : localization studies, International Journal of Solids and Structures Vol 38 pp 8503-8527
• Tamagnini C., Chambon R., Caillerie D., (2001) A second gradient elastoplastic cohesive frictional model for geomaterials, C.R.A.S-Série II b vol 329 pp 735-739 
• Chambon R., Caillerie D.,  Tamagnini C., (2001)A finite deformation second gradient theory of plasticity, C.R.A.S-Série II b vol 329 pp 797-802 
• Homand F., Chambon R.,  Chiarelli A .-M. , Desrues J., Dragon A., Halm D., Hoxha D. , Kondo D., Shao J.-F., (2002) Comparaison des concepts et prédictions des modèles, Revue Française de Génie Civil, Vol 6 n°1 pp131-143 
• Desrues J., Chambon R., (2002) Modélisation d’une Argilite à l’aide du modèle CLoE, Revue Française de Génie Civil Vol 6 n°1 pp89-113 
• Matsushima T., Chambon R., Caillerie D., (2002) Large strain finite element analysis of a local second gradient model : application to localization, International Journal for Numerical Methods in Engineering, Vol 54 n°4 pp 499-521 
• Desrues J., Chambon R., (2002) Shear bands Analysis and Shear Moduli Calibration, International Journal of Solids and Structures Vol 39 n°13-14 pp 3757-3776 
• Chambon R., (2002) Small strain vs large strain formulation in computational mechanics, Revue Française de Génie Civil Vol 64 n°65 pp 1037-1049 (2002)
• Chambon R., Roger V., (2003) Mohr-Coulomb MiniCLoE model : Uniqueness and localization studies, links with normality rule, International Journal for Numerical and Analytical Methods in Geomechanics Vol 27 pp49-68 

• Chambon R., Moullet J.-C., Uniqueness studies in boundary value problems involving some second gradient models, Computer Methods in Applied Mechanics and Engineering vol.193 ,  pp. 2771-2796 (2004)

• Chambon R., Caillerie D., Tamagnini C., A finite deformation second gradient theory of plasticity, Computer Methods in Applied Mechanics and Engineering vol.193 ,  pp. 2797-2826 (2004)

• Chambon R., Discussion about the paper -Shear stress and objective rate in hypoplasticity- by D. Kolymbas,  International Journal for Numerical and Analytical Methods in Geomechanis vol.28 ,  pp. 365-372 (2004)

• Chambon R., Caillerie D., Vigianni C., Loss of uniqueness and bifurcationvs instability: some remarks",  Revue Française de Génie Civil  vol  8 pp517-535  (2004)

• Caillerie D., Chambon R., "Existence and uniqueness for rate problems of geomechanics : application to elasoplastic and hypoplastic (CLoE) models",  Revue Fançaise de Génie Civil 8 pp 537-561  (2004)

• Lanier J., Caillerie D., Chambon R., Vigianni C., Bésuelle P., Desrues J., A general formulation of hypoplasticity International Journal for Numerical and Analytical Methods in Geomechanis 28, pp 1461-1478 (2004)

• Chambon R., "Some Some theoretical results about second order work, uniqueness,existence and controllability independent of the constitutive equation", Accepted for publication  Journal of Engineering Mathematics (2005)

• Chambon R., Crochepeyre S., Charlier R. (1997) Numerical study of bifurcation for a biaxial test, in: Computational Plasticity : Fundamentals and Applications, Barcelone COMPLAS V, D.R.J. Owen, E. Onate E Hinton eds pp 674-681
• El Hassan N., Desrues J., Chambon R. (1997) Influence of Anisotropy of the far-field stress in the numerical modelling of a deep borehole excavation, in: Numerical methods in mechanics, Beyrouth, Liban pp. 568-572
• El Hassan N., Desrues J., Chambon R. (1997) Numerical modelling of borehole instability using a non linear incremental model with bifurcation analysis, in: Deformation and progressive failure in Geomechanics, IS-NAGOYA'97, Asaoka, Adachi Oka eds pp 677-682
• Tamagnini C., Viggiani G., Chambon R., Desrues J. (1997) Evaluation of a stress point algorithm for a hypoplastic constitutive model for granular materials, in: Numerical Models in Geomechanics, NUMOG VI, Montreal Juillet pp 387-392
• Chambon R., Crochepeyre S. (1997) Introduction of an interface model in a large stain computer code, application to Daphnis model, in: Numerical Models in Geomechanics, NUMOG VI, Montreal Juillet pp 187-192
• Viggiani G., Mooney M., Bardet J., Chambon R. (1997) A Numerical investigation of local volume change and void ratio evolution leading to failure of granular media, in: Deformation and progressive failure in Geomechanics, IS-NAGOYA'97, Asaoka, Adachi Oka eds pp 401-406
• Chambon R., Crochepeyre S. (1998) Incremental non linearuty, bifurcation and shear banding, in: Localisation and Bifurcation in soils and rocks, 4th International Workshop on Localisation and Bifurcation, Gifu 1998, Adachi Oka & Yashima eds pp 33-41
• Tamagnini C., Viggiani G., Chambon R. (1999) A review of two different approaches to hypoplasticity, in Constitutive Modelling of Granular Materials including Developments and Perspectives of Hypoplasticity Kolymbas ed. Springer pp107-145
• Chambon R., (1999) Uniqueness, second order work and bifurcation in hypoplasticity, in Constitutive Modelling of Granular Materials including Developments and Perspectives of Hypoplasticity Kolymbas ed. Springer pp147-165
• Chambon R., Matsushima T., Caillerie D. (1999) A finite element method for local second gradient model using Lagrange multipliers in NUMOG VII, Graz pp 195-200
• Tamagnini C., Viggiani G., Chambon R. (1999) Performance of different stress-point algorithms for the integration of hypoplastic constitutive equations for geomaterials, in: NUMOG VII, Graz pp 189-194
• Chambon R., Matsushima T., Caillerie D. (2000) Microstructured materials: local constituttive equation with internal lenght, theoretical and numerical studies, Continuous and Discontinuous Modelling of Cohesive-Frictional Materials,  P.A. VERMEER, S. DIEBELS, W. EHLERS, H.J. HERMANN, S. LUDING, E. RAMM eds LECTURE NOTES IN PHYSICS Springer pp 273-289
• Chambon R., (2001) Incremental behavior of a simple deviatoric constitutive CLoE model,  in. 5th International on Localisation and Bifurcation Theory for Soils and Rocks H.B MUHLHAUS et. al. editors Swets & Zeitlinger Rotterdam pp 21-28 
• Tamagnini C., Viggiani G., Chambon R, (2001) Some remarks on shear band analysis in Hypoplasticity, in 5th International on Localisation and Bifurcation Theory for Soils Rocks H.B MUHLHAUS et. al. editors Swets & Zeitlinger Rotterdam pp 85-93 
• Matsushima T., Chambon R., Caillerie D., (2001)  Strain gradient plasticity theory in large strain, in 5th International on Localisation and Bifurcation Theory for Soils and Rocks H.B MUHLHAUS et. al. editors Swets & Zeitlinger Rotterdam pp 217-224 
• Moullet J.-C., Chambon R., (2002) Bifurcation analysis for boundary value problems involving a second gradient model,  in NUMOG VIII, Roma G. PANDE, S. PIETRUSZCZAK eds Swets & Zeitlinger Rotterdam pp171-177 
• Moullet J.-C., (2003)  Uniqueness numerical analysis for boundary value roblems invoving a second gradient model, in VII International Conference on Computational plasticity, Barcelone E. ONATE, D.R.J. OWEN. eds

• Chambon R., Collin F., (2004) "Hydro mechanical modelling of geotechnical problems using local second gradient models",  in: 2ième international Symposium on discontinuous modelling of cohesive frictional materials, Stuttgart 27-28 Septembre 2004, Vermeer, Ramm, Hermann, Ehlers eds., A.A. Balkema,