...Ricardo Schiava; Guillermo Etse In this work an elastoplastic constitutive theory for unsaturated soils is presented. The proposed material model is formulated in the general framework of the theory of porous media and of the flow theory of plasticity. The model is based on an extension of the well...

... by explosive loads located on the soil surface is presented. The soil parameters used in the numerical model, as well as the analysis procedure, were validated against experimental observations of the crater diameters. Results of numerical tests performed with different amounts of explosive on the soil surface...

... approaches the Rayleigh wave velocity or the shear wave velocity in the elastic medium. This is relevant for the construction of high speed railway lines on relatively soft soils. Hysteretic damping is introduced as pseudo-viscous damping, assuming that the damping in a full cycle of loading and unloading...