Search for dissertations about: "fracture zone"

Showing result 1 - 5 of 101 swedish dissertations containing the words fracture zone.

  2. 1. 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

  4. 2. 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. 3. Fracture toughness properties of a welded duplex stainless steel

    Author : Henrik Sieurin; KTH; []
    Keywords : duplex stainless steel; fracture toughness; brittle fracture; heat affected zone; austenite reformation;

    Abstract : .... READ MORE

  6. 4. Behaviour of fracture process zones in concrete influenced by simultaneously applied normal and shear displacements

    Author : Manouchehr Hassanzadeh; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; softening; mixed mode; fictitious crack model; concrete; deformationer; betong; brottmekanik; hållfasthet; brotthållfasthet; spänningar; skjuvspänningar; sprickor; beräkningsmodeller; brottenergi; teori; laboratorieförsök; interlock; crack path; diagonal crack; microcracking; instability; fracture energy; fracture mechanics; shear; tension; process zone;

    Abstract : The thesis deals with the determination of the post peak behaviour of concrete in pure tension, and combined tension (compression) and shear. A test arrangement has been developed in order to determine the post peak behaviour of concrete expressed as stress - displacement curves. READ MORE

  7. 5. On the Modelling of Fracture Using Strong Discontinuities

    Author : Martin Fagerström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fracture; strong discontinuity; material forces; finite deformations; FEM;

    Abstract : The major concern of this work is the constitutive and numerical modelling of fracture,based on strong discontinuity formulations. More particularly, an extended finiteelement approach is used, where the total displacement is separated in two mutuallyindependent fields, representing the continuous and discontinuous displacement respectively. READ MORE