[Comportement non linéaire de composites à phase inclusionnaire sous haute pression : application aux bétons et mortiers]
On présente une approche micromécanique de la réponse d'un béton à des compressions œdométrique ou hydrostatique. Le béton est décrit comme un composite avec une matrice cimentaire et des inclusions rigides. L'accent est mis sur le rôle de l'interface entre matrice et inclusion qui représente la zone interfaciale de transition (ITZ). On se donne un comportement élastoplastique pour la matrice ainsi que pour les interfaces. Le comportement homogénéisé est obtenu à l'aide de la méthode sécante modifiée adaptée à la présence d'interfaces.
This paper is devoted to a micromechanics-based simulation of the response of concrete to hydrostatic and oedometric compressions. Concrete is described as a composite made up of a cement matrix in which rigid inclusions are embedded. The focus is put on the role of the interface between matrix and inclusion which represent the interfacial transition zone (ITZ). A plastic behavior is considered for both the matrix and the interfaces. The effective response of the composite is derived from the modified secant method adapted to the situation of imperfect interfaces.
Accepté le :
Publié le :
Mot clés : Milieux continus, Béton, Mortier, Interface, Homogénéisation, Nonlinéarité
@article{CRMECA_2008__336_8_670_0,
author = {Tuan Hung Le and Luc Dormieux and Laurent Jeannin and Nicolas Burlion and Jean-Fran\c{c}ois Barth\'el\'emy},
title = {Nonlinear behavior of matrix-inclusion composites under high confining pressure: application to concrete and mortar},
journal = {Comptes Rendus. M\'ecanique},
pages = {670--676},
publisher = {Elsevier},
volume = {336},
number = {8},
year = {2008},
doi = {10.1016/j.crme.2008.05.009},
language = {en},
}
TY - JOUR AU - Tuan Hung Le AU - Luc Dormieux AU - Laurent Jeannin AU - Nicolas Burlion AU - Jean-François Barthélémy TI - Nonlinear behavior of matrix-inclusion composites under high confining pressure: application to concrete and mortar JO - Comptes Rendus. Mécanique PY - 2008 SP - 670 EP - 676 VL - 336 IS - 8 PB - Elsevier DO - 10.1016/j.crme.2008.05.009 LA - en ID - CRMECA_2008__336_8_670_0 ER -
%0 Journal Article %A Tuan Hung Le %A Luc Dormieux %A Laurent Jeannin %A Nicolas Burlion %A Jean-François Barthélémy %T Nonlinear behavior of matrix-inclusion composites under high confining pressure: application to concrete and mortar %J Comptes Rendus. Mécanique %D 2008 %P 670-676 %V 336 %N 8 %I Elsevier %R 10.1016/j.crme.2008.05.009 %G en %F CRMECA_2008__336_8_670_0
Tuan Hung Le; Luc Dormieux; Laurent Jeannin; Nicolas Burlion; Jean-François Barthélémy. Nonlinear behavior of matrix-inclusion composites under high confining pressure: application to concrete and mortar. Comptes Rendus. Mécanique, Volume 336 (2008) no. 8, pp. 670-676. doi : 10.1016/j.crme.2008.05.009. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2008.05.009/
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