Search for dissertations about: "Nils Hallbäck"

Showing result 1 - 5 of 7 swedish dissertations containing the words Nils Hallbäck.

  2. 1. Automatic Mixed-Mode Crack Propagation Computations using a combined Hexahedral/Tetrahedral-Approach

    Author : Daniel Bremberg; Jonas Faleskog; Nils Hallbäck; KTH; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : .... READ MORE

  4. 2. Influence of inhomogeneities on the tensile and compressive mechanical properties of paperboard

    Author : Anton Hagman; Mikael Nygårds; Sören Östlund; Nils Hallbäck; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Paperboard; Inhomogeneities; In-plane properties; Tension; Compression; Shear properties; Delamination; Hållfasthetslära; Solid Mechanics;

    Abstract : The in-plane properties of paperboard have always been of interest to paper scientists. Tensile properties are crucial when the board is fed through converting machines at high speeds. Compressive properties are essential in the later use. Inhomogeneities affect both the compressive and tensile properties. READ MORE

  5. 3. Numerical and experimental investigation of paperboard creasing and folding

    Author : Hui Huang; Mikael Nygårds; Nils Hallbäck; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Teknisk materialvetenskap;

    Abstract :  This licentiate thesis aims to increase the understanding of deformation and damage mechanisms of paperboard during converting, especially creasing and folding will be analyzed. A simple two dimensional creasing simulation was performed. READ MORE

  6. 4. Mechanical Behaviour of Adhesive Joints in Cartonboard for Packaging

    Author : Christer Korin; Magnus Lestelius; Nils Hallbäck; Christophe Barbier; Christer Fellers; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hot melt Adhesives; Carton board; Y-peel; Peel strength; Chemical Engineering; Kemiteknik;

    Abstract : A cartonboard package is often sealed and closed with an adhesive – either a hot-melt adhesive (adhesives that are applied in a molten state on the cartonboard) or a dispersion adhesive (adhesives that are applied as water-based dispersions). This thesis focuses on the process of hot-melt gluing, and how material properties and process conditions affect the performance of the adhesive joint. READ MORE

  7. 5. Very high cycle fatigue of automotive steels : Testing and computation at 20 kHz

    Author : Mohamed Sadek; Jens Bergström; Nils Hallbäck; Ulrich Krupp; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Very high cycle fatigue; ultrasonic fatigue testing; automotive steels; fatigue strength; stress intensity computation; crack growth; Materialteknik; Materials Engineering;

    Abstract : Mechanical fatigue failure occurs in components subjected to cyclic loading. A crack initiates at critical regions in the component and propagates during repeated loading. The expected fatigue life depends on the level, type and frequency of the loading. READ MORE