Organizing Committee
P. Acker, Lafarge
N. Bonn, LCPC, Navier
S. Dal Pont, LCPC
P. Dangla, Chairman, LCPC, Navier
T. Fen-Chong, LCPC, Navier
A. Feraille, École des Ponts ParisTech
M.-F. Kaspi, École des Ponts ParisTech
J.-M. Pereira, École des Ponts ParisTech
J. Sulem, École des Ponts ParisTech
M. Thiery, LCPC
M. Valenti, LCPC
H. Van Damme, LCPC
M. Vandamme, École des Ponts ParisTech
G. Vue, École des Ponts ParisTech
Venue
École des Ponts ParisTech is located in Champs-surMarne, 20 minutes away from downtown Paris by train.
Walking directions from RER A train station « NoisyChamps » are shown below (follow « Cité Descartes » to
exit the train station). The symposium will be held in the
Cauchy lecture hall.
ENSG
North entrance (RER)
Aile
Maupertuis
Cafeteria
ENPC
Aile Vicat
MPPS 2011
Mechanics and Physics
of Porous Solids
A tribute to late
Pr. Olivier Coussy
Lesage Library
Aile Laplace
Amphi Cauchy
(-2)
Aile Prony
Amphi Navier
Restaurant
Scientific Committee
Y. Abousleiman, University of Oklahoma, USA
E. Alonso, UPC, Barcelona, Spain
Z. Bazant, Northwestern University, USA
J. Carmeliet, EMPA, Zurich, Switzerland
A. Cheng, University of Mississippi, USA
P. Dangla, LCPC, Paris, France
E. Detournay, University of Minnesota, USA
L. Dormieux, École des Ponts ParisTech, France
W. Ehlers, University of Stuttgart, Germany
E. Fairbairn, COPPE, Rio de Janeiro, Brazil
P. Levitz, École Polytechnique, Paris, France
K. Li, Tsinghua University, Beijing, China
H. Mang, IMWS, Vienna University of Technology, Austria
P. Monteiro, University of California, Berkeley, USA
J. Prevost, Princeton University, USA
J. Rice, Harvard University, USA
J. Rudnicki, Northwestern University, USA
C. Santamarina, GeorgiaTech, USA
G. Scherer, Princeton University, USA
B. Schrefler, University of Padoua, Italy
F.-J. Ulm, MIT, Cambridge, USA
H. Van Damme, LCPC, Paris, France
Aile Cassini
Accueil
Aile Belgrand
Entrance Blaise Pascal avenue
18-20 April
École des Ponts ParisTech
Champs-sur-Marne, France
Organisation
Contact:
mpps2011@lcpc.fr
Website: http://navier.enpc.fr/events/mpps2011
Sponsors
Biography
Scope
Invited speakers
Pr. Olivier Coussy, the prominent scientist and engineer who
developed the fundamentals of poromechanics theory, that were
transformational in many applications of civil, environmental
and petroleum engineering, bioengineering and sustainable development of materials and structures, died January 15, 2010 at his
home in Vanves, close to Paris.
We are surrounded by porous solids. Since porous solids through
which fluids can seep or flow are ubiquitous, they are of interest
to a wide range of fields: food engineering, geosciences, civil
engineering, building physics, petroleum geophysics, chemical
industry, biomechanics and so on. Even though materials and
fields are very diverse, all porous solids for all applications have
one thing in common: they are subject to the same coupled processes such as freezing and swelling, drying and shrinkage, diffusion of liquids and creep, osmosis and expansion. Such coupled processes occur at the interface between physical chemistry
and mechanics.
Y. Abousleiman, Oklahoma University, USA
E. Bemer, IFP, France
N. Bonn, LCPC, France
J. Carmeliet, EMPA, Zurich, Switerland
G. Chanvillard, Lafarge, France
A. Cheng, University of Mississippi, USA
S. Cowin, The City College of New York, USA
E. Detournay, University of Minnesota, USA
L. Dormieux, École des Ponts ParisTech, France
R. Eymard, Paris-Est University, France
A. Fabbri / T. Fen-Chong, BRGM, France
E. Fairbairn, COPPE, Rio de Janeiro, Brasil
A. Gens, UPC, Barcelona, Spain
C. Hellmich, IMWS, Vienna University of Technology, Austria
T. Lassabatère / C. Chavant, EDF, France
B. Lecampion, Schlumberger, France
P. Levitz, École Polytechnique, France
K. Li, Tsinghua University, China
P. Monteiro, UC Berkeley, USA
M. Murad, National Laboratory for Scientific Computing LNCC/MCT
J.-M. Pereira, École des Ponts ParisTech, France
J.-H. Prevost, Princeton University, USA
J. Rice, Harvard University, USA
J.-W. Rudnicki, Northwestern University, USA
C. Santamarina, GeorgiaTech, USA
G. Scherer, Princeton, USA
B. Schrefler, University of Padoua, Italy
F. Skoczylas, University of Lille, France
F.-J. Ulm, MIT, USA
M. Vandamme / L. Brochard, École des Ponts, France
Pr. Coussy broke new grounds in Applied Mechanics. He developed a consistent thermodynamics theory of poromechanics, by
considering porous continua, at the macroscopic scale of engineering applications, as open thermodynamic systems in which
the addition of one or several fluid phases changes the energy
and entropy balance of the solid system. During the late 1990s
and 2000s, Pr. Coussy extended the poromechanics theory of
saturated to partially saturated porous media, including chemically reactive porous materials and other phenomena where the
physics and chemistry of solid and fluids cause deformation of
materials and structures. Many of these scholarly contributions
were driven by the need for the development of predictive engineering models for large scale engineering applications, such as
early-age concrete behavior, drying shrinkage of concrete, swelling of clay, front propagation in calcium leaching and chloride
diffusion, and so on. In this spirit, he completed the development
of the thermodynamics and constitutive models of materials subjected to coupled phenomena, at the intersection of mechanics of
porous solids and physical chemistry. All this led the way for
poromechanics to open up a whole new field of applications in
chemomechanics and durability mechanics problems of materials and structures. Recently, Pr. Coussy returned to the very
foundations of the thermodynamics approach of poromechanics,
in advancing a theory that distinguishes energy and entropy
contributions from the solid, the fluid and the interfaces. This
new framework was key to solving many puzzles past and future, be it hardening plasticity for unsaturated porous materials;
confined phase transitions in porous media (freezing materials,
in-pore crystallization of salt); or adsorption-induced swelling of
coal for Carbon sequestration applications. These recent developments have as common denominator the “Mechanics and
Physics of Porous Solids”, the title of his third monograph on
poromechanics.
Throughout his distinguished career, Pr. Coussy was also a dedicated educator, an inspiring instructor and a generous mentor. Pr.
Coussy received many recognitions; among which the Jean
Mandel Award (1985) from the French Association of
Mechanics; the Plumey Award (1999) from the French Academy
of Sciences; the Knight of the National Order of Merit (2000);
and the Biot Medal (2003) from the American Society of Civil
Engineers, of which he was the first recipient.
Since environmental engineering, petroleum geophysics, civil
engineering, geotechnical engineering, biomechanics, food
industry and so on, involve processes that pertain to both physical chemistry and solid mechanics, experts in each of those two
fields interact regularly. However, the interface between those
two fields is not often explored.
This symposium aims at gathering scientists and industrials that
either develop or utilize the concepts of the mechanics and physics of porous solids as envisioned by the late Pr. Coussy.
SEM-BSE imaging on mortar
Courtesy of M. Thiery
Air voids incorporated in a cement paste operate as both expansion
reservoirs and cryopumps; as a result, they efficiently mitigate the frost
action upon cement-based materials. Courtesy of P. Monteiro
Example of concrete degradation
Courtesy of H. Delahousse
Evidence of shear dilatancy
of granular materials
Courtesy of
F. Coussy and Y. Goiran
Capillary hardening:
little water added to dry sand gets
trapped between the sand grains by
capillary bridges. Being strongly
depressurized, this water sticks the
grains together and gives its cohesion to wetted sand, making possible this beautiful reproduction on
the beach of Gaudi’ Sagrada
Familia.
Copyright:
Thierry Joffroy, CRATerre-ENSAG