We study the effect of the anisotropy induced by loading on the elastoplastic response of a two dimensional discrete element model granular material. The anisotropy of the contact network leads to a breakdown of the linear isotropic elasticity. We report on a linear dependence of the Young moduli and Poisson ratios on the fabric coefficients, measuring the anisotropy of the contact network. The...

3D-printed structures may be characterized by anisotropic fracture behavior because of their layered nature. Depending on the orientation sample during layer deposition, a completely different mechanical response can obtained, ranging from quasi-brittle to elastoplastic, and with large variations in maximum stress failure. In this study, an optimization framework is proposed for samples maximiz...

We discuss a topology optimization problem for an elastoplastic medium. The distribution of material in region is optimized with respect to given target functional taking into account complianc...

a non-linear finite element model could be a useful tool in the development of a method of predicting soil pressure-sinkage behaviour, and can be used to investigate and analyze soil compaction. this study was undertaken to emphasize that the finite element method (fem) is a proper technique to model soil pressure-sinkage behaviour. for this purpose, the finite element method was used to model ...