Search for dissertations about: "Fracture mechanics"

Showing result 16 - 20 of 249 swedish dissertations containing the words Fracture mechanics.

  2. 16. Fracture mechanical modelling of embossed paper

    Author : Rickard Hägglund; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : This thesis consists of two scientific papers on strength and fracture of embossed tissue paper. In Paper A an experimental study of embossed tissue paper is presented. The mechanical properties of most soft tissue paper are to a large extent governed by the creping and subsequent embossing process. READ MORE

  4. 17. In-Plane Fracture of Paper

    Author : Johan Tryding; Institutionen för byggvetenskaper; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggnadsteknik; Building construction; Paper; Fracture energy; Strain softening; Localized damage; Fracture mechanics;

    Abstract : The in-plane failure of paper is studied in this work by means of a cohesive crack model from experimental as well as theoretical perspectives. Localized damage at in-plane tension of short paper strips is studied for low strain rates. READ MORE

  5. 18. Towards energy-based fracture modelling for crashworthiness applications

    Author : Simon Jonsson; Jörgen Kajberg; Stefan Golling; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : The automotive industry is currently adapting to progessively more stringent emission and safety regulations imposed by governmental agencies. This introduces significant design difficulties due to the conflicting nature of passenger safety in automotive manufacturing, namely that increased crashworthiness generally leads to heavier vehicles, which in turn leads to more severe crashes. READ MORE

  6. 19. Fracture and Delamination in Packaging Materials : A Study of Experimental Methods and Simulation Techniques

    Author : Md Shafiqul Islam; Sharon Kao-Walter; Christian Johansson Askling; Martin Kroon; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; packaging materials and laminates; shear test specimen; essential work of fracture; finite element simulation; optimization; tearing; peel; polymers; cohesive zone modelling;

    Abstract : Packages are the means of preservation, distribution and convenience of use for food, medicine and other consumer products. The introduction of a new package-opening technique for a better opening experience requires additional prototype development and physical testing. READ MORE

  7. 20. Crack growth and development of fracture zones in plain concrete and similar materials

    Author : Per-Erik Petersson; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tensile strength; finite element method; test methods; fracture energy; fracture mechanics; concrete; cracking; finita element; brottmekanik; beräkningsmetoder; oarmerad betong; sprickutbredning; sprickor; betong; fracture zone; tensile stress-strain curve;

    Abstract : [abstract missing].... READ MORE