Zhang, F.; Ye, Bin; Jin, Y. J.; Nakai, T. Cyclic mobility of sand and its simulation in boundary value problems. (English) Zbl 1239.74059 Wan, Richard (ed.) et al., Bifurcations, instabilities and degradations in geomaterials. Papers from the 8th international workshop on bifurcation and degradations in geomaterials (IWBDG 2008): Applications to soil-machine interaction and petroleum geomechanics, Lake Louise, Canada, May 28–31, 2008. Berlin: Springer (ISBN 978-3-642-18283-9/hbk; 978-3-642-18284-6/ebook). Springer Series in Geomechanics and Geoengineering, 113-132 (2011). Summary: A new model is proposed to describe the mechanical behaviors of soils under different loading conditions, in which new evolution equations for stress-induced anisotropy and density of soils are proposed. By combining systematically the above two evolution equations with the evolution equation for the structure of soil, the newly proposed model is able to describe not only the mechanical behavior of soils under monotonic loading, but also under cyclic loading with different drained conditions. For given sand with different densities, very loose sand may liquefy without cyclic mobility, medium dense sand will liquefy with cyclic mobility while dense sand will not liquefy, which is just controlled by the density, the structure and the anisotropy of the sand. The proposed model can uniquely describe this behavior without changing its parameters. Shaking-table tests on saturated sandy ground with repeated liquefaction-consolidation process are then simulated with finite element-finite difference method (FE-FD) based on the newly proposed model.For the entire collection see [Zbl 1238.74003]. MSC: 74L10 Soil and rock mechanics PDFBibTeX XMLCite \textit{F. Zhang} et al., in: Bifurcations, instabilities and degradations in geomaterials. Papers from the 8th international workshop on bifurcation and degradations in geomaterials (IWBDG 2008): Applications to soil-machine interaction and petroleum geomechanics, Lake Louise, Canada, May 28--31, 2008. Berlin: Springer. 113--132 (2011; Zbl 1239.74059) Full Text: DOI