Browsing by Author "Eliás, Jan"

Now showing items 1-5 of 5

    • Adaptive refinement technique for discrete static models of fracture 

      Eliás, Jan (CIMNE, 2015)
      Conference report
      Open Access
      The discrete static models are advantageneously used for fracture simulations in heterogeneous materails. These simulations are often extremely computationally demanding. The contribution aims to reduction of computationa ...

    • DEM simulation of railway ballast using polyhedral elemental shapes 

      Eliás, Jan (CIMNE, 2013)
      Conference report
      Open Access
      Modelling of railway ballast response using Discrete Element Method with polyhedral shape of grains is presented. The convex polyhedrons are generated pseudorandomly via Voronoi tessellation. Inter-particle contact is based ...

    • Elastic properties of isotropic discrete systems with skew contact normals 

      Eliás, Jan (CIMNE, 2019)
      Conference report
      Open Access
      The macroscopic elastic properties of discrete assemblies are fundamental characteristics of such systems. The contribution uses homogenization procedure based on equivalence of virtual work between the isotropic elastic ...

    • Fracturing in concrete via lattice-particle model 

      Eliás, Jan; Bažant, Zdeněk Pavel (CIMNE, 2011)
      Conference report
      Open Access
      Numerical simulation is used to explore the behavior of concrete beams of different sizes and different notch lengths, loaded in three-point bending. The entire range of notch depth is studied. One limit case is type 1 ...

    • Mechanical behavior of boundary layer in discrete models based on Voronoi tessellation 

      Eliás, Jan (CIMNE, 2017)
      Conference report
      Open Access
      The contribution introduces 2D and 3D discrete static model of concrete based on Voronoi tessellation. Attention is focused on the boundary region where, due to presence of boundaries, the orientation of contacts exhibits ...