Search for dissertations about: "Dimosthenis Floros"

Found 2 swedish dissertations containing the words Dimosthenis Floros.

  1. 1. Finite element procedures for crack path prediction in multi-axial fatigue

    Author : Dimosthenis Floros; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mixed-mode; Fracture mechanics; Rolling contact fatigue; Numerical simulation; Configurational forces; Plasticity;

    Abstract : Rolling Contact Fatigue (RCF) cracks in rails are among the most detrimental railway track defects regarding reliability and cost. The cracks typically grow in shear mode up to a certain length at which they might arrest or kink into a more tensile-driven growth. READ MORE

  2. 2. The effect of inelastic deformation on crack loading

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Dimosthenis Floros; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Numerical simulation; Mixed mode; Configurational mechanics; Gradient plasticity;

    Abstract : Rolling contact fatigue (RCF) cracks in rails are among the most detrimental railway track defects, in relation to reliability and cost. The cracks grow in a mixed mode II & III, which in combination with the rotating stress field in the neighborhood of the crack-tip, large plastic deformations on the rail surface, crack face friction due to the compressive stresses from the wheel load and anisotropic crack growth resistance, add to the complexity related to the study of RCF cracks. READ MORE