A poroelastic model for the effective behavior of granular materials with interface effect

Z. He (1) , Luc Dormieux (2) , Éric Lemarchand (3) , Djimedo Kondo (1)

1 DALEMBERT - Institut Jean le Rond d'Alembert
2 multi-échelle - Modélisation et expérimentation multi-échelle pour les solides hétérogènes
3 navier umr 8205 - Laboratoire Navier

Various materials encountered in civil engineering are made up of grains interacting with one another along their interfaces. Their effective mechanical properties are strongly affected by these interfaces, where large local strains are expected. The purpose of the present paper is to derive a linear poroelastic model for fluid-saturated granular media with imperfect interfaces. A new approach based on the definition of an equivalent homogeneous phase is also derived. The latter allows a straightforward analysis of the homogenized behavior of the aforementioned materials. (C )2012 Elsevier Ltd. All rights reserved

Mots clés: Micromechanics; Poroelasticity; Interface; Self-consistent scheme

Domaines: Physique [physics]; Matière Condensée [cond-mat]; Science des matériaux [cond-mat.mtrl-sci]

Z. He, Luc Dormieux, Éric Lemarchand, Djimedo Kondo. A poroelastic model for the effective behavior of granular materials with interface effect. Mechanics Research Communications, 2012, 43, pp.41-45. ⟨10.1016/j.mechrescom.2012.02.009⟩. ⟨hal-00720977⟩