Experiments and micromechanical modelling of elastic parameters of a composite geomaterial

Jolanta Lewandowska (1) , Maciej Pilawski (2)

1 CGB - Couplages en Géomécanique et Biomécanique
2 Silesian University of Technology

The aim of this paper is to study the elastic behaviour of a periodic composite geomaterial by applying a micromechanical approach. The macroscopic anisotropic rigidity tensor is computed using the asymptotic expansion homogenization method. The results are partially validated through the triaxial testing of a composite in which the spheres made of sintered clay are periodically embedded in a matrix (Hostun sand HN38). Good agreement was observed between calculated and measured elastic parameters.

Mots clés: Homogenization; Rigidity tensor; Triaxial tests; Geomaterials; Numerical computations; Anisotropy

Domaines: Génie civil; Matériaux; Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]; Mécanique des solides [physics.class-ph]; Mécanique des solides [physics.class-ph]

Jolanta Lewandowska, Maciej Pilawski. Experiments and micromechanical modelling of elastic parameters of a composite geomaterial. European Journal of Environmental and Civil Engineering, 2012, 17 (1), pp.46-63. ⟨10.1080/19648189.2012.667694⟩. ⟨hal-00826190⟩