MECHANICS OF HETEROGENEOUS MATERIALS

Institut National Polytechnique de Grenoble
46 Avenue Félix Viallet 38000 Grenoble France
June 21-22, 1999


Coordinators:
Félix Darve and Benjamin Loret

Schedule

Monday Morning Monday Afternoon Tuesday Morning Tuesday Afternoon
Session Heterogeneous Materials Geomaterials Polycrystalline Materials Damage Mechanics
Keynote Lecture John R. Willis Sia Nemat-Nasser André Zaoui Jean-Louis Chaboche

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Monday Morning June 21, 1999
Session HETEROGENEOUS MATERIALS

8h30-9h00: Registration and welcome address
9h00-9h45: John R. Willis, Cambridge University, UK
Estimating the yield stress of elastoplastic polycrystals: recent results
9h45-10h15: Claude Boutin and X. Olny, Ecole Nationale des Travaux Publics de l'Etat, Vaulx en Velin,
Diversity of interscale coupling. The case of acoustics of multiporosity media
10h15-10h30: Break
10h30-11h00: Patrick de Buhan and B. Sudret, Ecole Nationale des Ponts et Chaussées, Marne la Vallée,
Micropolar continuum description of materials reinforced by linear inclusions
11h00-11h30: Jean Sulem, Ecole Nationale des Ponts et Chaussées, Marne la Vallée,
Analysis of scale effect in rock indentation tests with higher order continuum theories
11h30-12h00: Joseph Gril et F. Samis, Université de Montpellier II,
Modélisation des déformations et des contraintes induites par l’élaboration et le séchage du bois à l’échelle de la paroi cellulaire
12h00-13h30: Lunch

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Monday Afternoon June 21, 1999
Session GEOMATERIALS

13h30-14h15: Sia Nemat-Nasser, University of California at San Diego, USA
Anisotropy in Deformation of Frictional Granules
14h15-14h45: Nenad Bicanic, University of Glasgow, UK
On discontinuous deformation framework for modelling progressive fracture of concrete
14h45-15h15: Jean-Marie Fleureau and A. Modaressi, Ecole Centrale de Paris, Chatenay Malabry
Modelling of unsaturated soils starting from a micromechanical model
15h15-15h45: Jian-Fu Shao, Laboratoire de Mécanique de Lille
Anisotropic damage modelling of partially saturated brittle materials
15h45-16h00:Break
16h00-16h30: Jean-Baptiste Leblond and P.B. Badel, Université Paris VI-Jussieu
Integration schemes for the microplane model of the mechanical behaviour of concrete
16h30-17h00: David Muir-Wood and G.V. Kumar,University of Bristol, UK
Experimental observations of behaviour of heterogeneous soils
17h00-17h30: Roberto Nova, Politecnico di Milano, Italia
The effect of rock weathering on the geostatic stress state
17h30-18h00: Jean-Pierre Vilotte and J.P. Ampuero, Institut de Physique du Globe de Paris
Localisation and the onset of dynamic antiplane shear instability for a frictional interface with displacement weathering friction

20h00: Anthony J.M. Spencer ,University of Nottingham, UK
J.P. Boehler: the scholar and his scientific achievements
followed by a banquet

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Tuesday Morning June 22, 1999
Session POLYCRYSTALLINE MATERIALS

8h00-8h45: André Zaoui, M. Bornert, R. Masson, Ecole Polytechnique Palaiseau
and P. Ponte-Castaneda, University of Pennsylvania, Philadelphia, USA
Nonlinear estimates of the effective behaviour of polycrystalline materials
8h45-9h15: Albrecht Bertram, Otto von Guericke Universität, Magdeburg, Deutschland
Texture evolution in polycrystalline metals under large plastic deformations
9h15-9h45: Marcel Berveiller, Université de Metz,
Dislocations related mechanisms in classical plasticity
9h45-10h15: Samuel Forest, Ecole Nationale Supérieure des Mines de Paris, Evry
Construction and Identification of Constitutive Equations for Generalized Continua
10h15-10h30: Break
10h30-11h00: Wiktor Gambin and K. Kowalczyk, Institute of Fundamental Technological Research, Warsaw, Poland
Effect of texture development on change of yield surface
11h00-11h30: François Sidoroff, Ecole Centrale de Lyon, A. Elomri and A. Fennan, University of Tanger, and A. Hihi, University of Rabat, Marocco
Anisotropic elastic-plastic behaviour as resulting from homogenization
11h30-12h00: Marc François, Université Paris VI, and G. Geymonat, Ecole Normale Supérieure de Cachan
Distance from a tensor to a given class of symmetry. Applications to the stiffness tensor measurement and to homogenization
12h00-13h30: Lunch


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Tuesday Afternoon June 22, 1999
Session DAMAGE MECHANICS

13h30-14h15: Jean-Louis Chaboche, Office National d’Etudes et Recherches Aérospatiales
Mécanique de l'endommagement: anisotropie initiale et anisotropie induite dans les matéeriaux composites
14h15-14h45: Josef Betten, Rheinisch-Westfalische Technische Hochschule, Aachen, Deutschland
Creep damage in isotropic and anisotropic materials
14h45-15h15: Ignacio Carol, Universitat Politecnica de Catalunya, Barcelona, Spain
Anisotropic damage evolution using a pseudo-logarithmic tensor rate
15h15-15h30: Break
15h30-16h00: Damien Halm and André Dragon, Ecole Nationale Supérieure de Mécanique et Aéronautique de Poitiers
Applications of the tensor functions representation theory in the field of anisotropic damage
16h00-16h30: Gilles Pijaudier-Cabot, C. la Borderie and S. Fichaut, Ecole Normale Supérieure de Cachan
Modelling damage and load induced anisotropy in concrete and cementitious materials
16h30-17h00: Quanshui Zheng,Tsinghua University, Beijing, China
Texture effect and modelling on martensite deformation of NiTi Shape Memory Alloy Sheet

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This page has been constructed by Benjamin Loret: Benjamin.Loret@hmg.inpg.fr
Last update: March 26, 1999.