Search for dissertations about: "plastic anisotropy"

Showing result 1 - 5 of 36 swedish dissertations containing the words plastic anisotropy.

  2. 1. Plastic Deformation of Duplex Stainless Steel

    Author : Magnus Nyström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steel; microstructure; plastic zones; impact toughness; anisotropy; prestraining; annealing; fractography; fatigue;

    Abstract : Duplex austenitic/ferritic stainless steels are increasingly used as an alternative to conventional austenitic grades. Main advantages of the duplex grades are good resistance to corrosion cracking and corrosion fatigue in environments that contain chloride. READ MORE

  4. 2. Continuum modeling of the mechanical properties of paperboard

    Author : Eric Borgqvist; Hållfasthetslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; director vectors; polyconvexity; plastic spin; creasing; anisotropy; fiberous materials; Continuum Modeling; Paperboard;

    Abstract : Continuum based elasto-plastic models for paperboard have been established in the work herein. The thesis begins with an introductory section that describes some of the background of the problem and gives some more motivation for the modeling choices made in the appended papers. READ MORE

  5. 3. Anisotropy in pearlitic steel subjected to rolling contact fatigue - modelling and experiments

    Author : NASIM LARIJANI; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pearlitic steel; crack propagation; Rolling Contact Fatigue; Anisotropy; plasticity; High Pressure Torsion;

    Abstract : In rails and wheels subjected to severe rolling/sliding contact, large plastic deformations accumulate in the surface layer. This decreases the fatigue resistance of components and makes this layer prone to formation of common rolling contact related defects. READ MORE

  6. 4. On the modeling of anisotropy in pearlitic steel subjected to rolling contact fatigue

    Author : NASIM LARIJANI; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling Contact Fatigue; crack propagation; Anisotropy; plasticity; pearlitic steel; material forces;

    Abstract : One of the main sources of damage caused by Rolling Contact Fatigue (RCF) inrailway components is the large plastic deformations that accumulate in the surface layerof these components. Large plastic deformations in components made of pearlitic steelinduce anisotropy in the mechanical properties of the material. READ MORE

  7. 5. Modeling of evolving anisotropy at finite elasto-plastic strain

    Author : Magnus Harrysson; Hållfasthetslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Simulation tools are used to a wide extent in the product development process today, both to obtain better products and to reduce the development time required. Anisotropic materials are utilized in many engineering applications. READ MORE