2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/20627Under mechanical deformation, most materials exhibit both elastic and fluid (or plastic) responses. No existing formalism derived from microscopic principles encompasses both their fluid-like and solid-like aspects. We define the {\it statistical texture tensor} to quantify the intuitive notion of stored deformation. This tensor links microscopic and macroscopic descriptions of the material, and extends the definition of elastic strain.4 pages, 2 figures. to appear in Granular MatterSoft Condensed MatterMaterials Sciencetext