Search for dissertations about: "fatigue loads"

Showing result 1 - 5 of 114 swedish dissertations containing the words fatigue loads.

  2. 1. Direct Calculation of Wave-Induced Loads and Fatigue Damage of Container Vessels

    Author : Zhiyuan Li; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; fatigue; stress concentration factor; direct calculation; Container ship; fatigue routing; wave-induced torsion.; extreme loading; nonlinear wave loads;

    Abstract : Container ships and their rules for fatigue design are in several ways differentcompared with other types of commercial ships such as tankers and bulk carriers. Forexample, most modern container ships have a pronounced bow flare and an overhangstern. READ MORE

  4. 2. Load Modelling for Fatigue Assessment of Vehicles - a Statistical Approach

    Author : Magnus Karlsson; Göteborgs universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Fatigue; customer correlation; road load modelling; design of experiments; vehicle independent load models; lateral loads; road load modelling;

    Abstract : A way of modelling loads in customer usage for fatigue life considerations of vehicles is discussed. The starting point is lateral vehicle loads acting on trucks. Customer usage is described by using road classification. READ MORE

  5. 3. Rainflow Analysis of Switching Markov Loads

    Author : Pär Johannesson; Matematisk statistik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; actuarial mathematics; programming; operations research; Statistics; rainflow matrix; fatigue; vehicle load; hidden Markov model; random load; Markov model; Switching process; Statistik; operationsanalys; programmering; aktuariematematik;

    Abstract : Rainflow cycles are often used in fatigue analysis of materials for describing the variability of applied loads. Therefore, an important characteristic of a random load process is the intensity of rainflow cycles, also called the expected rainflow matrix (RFM), which can be used for evaluation of the fatigue life. READ MORE

  6. 4. Continuous Welded Railway Rails: Residual Stress Analyses, Fatigue Assessments and Experiments

    Author : Anders Skyttebol; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microstructure; laser cladding; plasticity; rolling contact; computational welding mechanics; materials testing; flash butt welding; fatigue; railway rails; fatigue crack propagation; finite element method;

    Abstract : Railway rails are today often continuously welded. This type of joint generally requires less maintenance than is needed for the bolted joints. It has also reduced wheel damage and made the ride more comfortable. However, these joints are subject to damage. READ MORE

  7. 5. Numerical Modelling of Short Fatigue Crack Growth

    Author : Per Hansson; Mekanik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; discrete dislocation; Fatigue; grain boundary; short crack;

    Abstract : Fatigue implies repeated loading and unloading of a structure, and components subjected to fatigue might experience nucleation of cracks, and subsequent crack propagation. This might lead to catastrophic consequences, such as complete failure of a structure. READ MORE