2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19757A macroscopic elastic description of stresses in static, preloaded granular media is derived systematically from the microscopic elasticity of individual inter-grain contacts. The assumed preloaded state and friction at contacts ensure that the network of inter-grain contacts is not altered by small perturbations. The texture of this network, set by the preparation of the system, is encoded in second and fourth order fabric tensors. A small perturbation generates both normal and tangential inter-grain forces, the latter causing grains to reorient. This reorientation response and the incremental stress are expressed in terms of the macroscopic strain.7 pages, 2 figures. Accepted version. cgay@crpp.u-bordeaux.fr rava@physics.harvard.eduSoft Condensed MatterMaterials Sciencetext