Transient dynamics of the thermally induced deformation of sands

Currently, inconclusive evidence characterizes the thermally induced deformation of sands. In this context, role transient nature heat diffusion on sands has remained largely disregarded. This paper presents a theoretical and computational investigation dynamics characterizing under oedometric conditions. The study shows that heating rates determined by pore fluid pressure dissipation timescale to ensure drained conditions can cause an important temperature nonuniformity breakdown quasi-static Under these dynamic conditions, differential expansion between sand confining oedometer ring uniquely response is broken down into two characteristic regimes. For slow low-expansion materials, mathematical analysis only occur, regardless relative density stress level. fast high-expansion parametric establishes possibility very small initial volumetric contraction for loose materials high levels. light existing literature, intrinsic loads sand, as material, expansive; may be observed work supports conceptual shift in framework sands, from temperature-dependent material rate-dependent finite volume nonuniform