Search for dissertations about: "elastic-plastic fracture"

Showing result 1 - 5 of 17 swedish dissertations containing the words elastic-plastic fracture.

  2. 1. Elastic-Plastic Fracture Mechanics and RCF in Rails

    Author : Johan Tillberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; RCF; elastic-plastic fracture mechanics; Material-forces; Multiple crack interaction;

    Abstract : This thesis concerns issues regarding the modeling and numerical simulation of singularcracks and their propagation in the context of Rolling Contact Fatigue (RCF) in rails.Typically, such cracks are associated with squats and head-checks in the rail head. READ MORE

  4. 2. Elastic-plastic fracture mechanics - Application to rolling contact fatigue in rails

    Author : Johan Tillberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FEM; rolling contact fatigue; railway mechanics; Elastic-plastic fracture mechanics; material forces;

    Abstract : Railway structures represent complex mechanical problems involving wave propagation, plastic deformations and material degradation. The wheel-rail contact loads subject the material to repeated cycles of complex stress states resulting in rolling contact fatigue (RCF). READ MORE

  5. 3. Numerical models of ductile crack growth

    Author : Annika Trädegård; KTH; []
    Keywords : solid mechanics; nonlinear fracture mechanics; elastic-plastic fracture; finite element method; remeshing; constraint; two-parameter characterisation; stable ductile crack growth; cleavage; weibull stress; void growth;

    Abstract : .... READ MORE

  6. 4. On the crack driving force in elastic-plastic fracture mechanics with application to rolling contact fatigue in rails

    Author : Anders Bergkvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  7. 5. Deformation and Fracture Behavior of Transparent Wood-Polymer Biocomposites

    Author : Erik Jungstedt; Lars Berglund; Sören Östlund; Bent Sørensen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biocomposites; fracture mechanics; strain field measurement; cohesive zone modeling; mechanical properties; Solid Mechanics; Hållfasthetslära;

    Abstract : Transparent wood-polymer biocomposites (TWPBs) are interesting wood-based materials with a unique combination of optical transmittance and mechanical properties. The wood substrate is delignified (removal of lignin) while the wood microstructure is preserved. READ MORE