Sökning: "elastic interaction"

Visar resultat 1 - 5 av 117 avhandlingar innehållade orden elastic interaction.

  1. 1. Interaction of Cylindrical Penetrators with Ceramic and Electromagnetic Armour

    Författare :Lars Westerling; Kristofer Gamstedt; Bengt Lundberg; Nils G. Ohlson; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk fysik med inriktning mot hållfasthetslära; Engineering Science with specialization in Solid Mechanics;

    Sammanfattning : Armoured vehicles have traditionally used steel armour as protection against penetrators such as projectiles and shaped charge jets. The latter produce a thin stretching metal jet, usually of copper, with a tip velocity of about 7-8 km/s. LÄS MER

  2. 2. Modelling of hydrogen interactions in metals

    Författare :Aare Mällo; Chalmers University of Technology; []
    Nyckelord :Adsorbate-adsorbate interaction; thermal desorption spectroscopy; metal-hydrogen systems; elastic interaction; total-energy calculations;

    Sammanfattning : .... LÄS MER

  3. 3. On Probability in Geotechnics. Random Calculation Models Exemplified on Slope Stability Analysis and Ground-Superstructure Interaction

    Författare :Claes Alén; Chalmers University of Technology; []
    Nyckelord :random; creep; slope stability; calculation; interaction; design; limit state; probability; statistics; geotechnics;

    Sammanfattning : The thesis deals with uncertainty in calculation modelling. Emphasis is put on the design state. Design is a chain of decisions under uncertainty. A probabilistic approach is used to describe the uncertainty and calculations as a way to reveal the uncertainty. LÄS MER

  4. 4. Wheel-rail Interaction Analysis

    Författare :Tanel Telliskivi; KTH; []
    Nyckelord :Archard; rolling-sliding; Winkler; wear simulation;

    Sammanfattning : A general approach to numerically simulating wear in rollingand sliding contacts is presented in this thesis. A simulationscheme is developed that calculates the wear at a detailedlevel. LÄS MER

  5. 5. Elastic-Plastic Fracture Mechanics and RCF in Rails

    Författare :Johan Tillberg; Chalmers University of Technology; []
    Nyckelord :RCF; elastic-plastic fracture mechanics; Material-forces; Multiple crack interaction;

    Sammanfattning : 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. LÄS MER