Search for dissertations about: "Fatigue assessment"

Showing result 1 - 5 of 118 swedish dissertations containing the words Fatigue assessment.

  1. 1. Refining the fatigue assessment procedure of existing steel bridges

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : John Leander; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fatigue; Steel bridges; Assessment; Reliability; Monitoring; Utmattning; stålbroar; bärighetsberäkning; tillförlitlighet; mätningar; Söderström; getingmidjan;

    Abstract : This thesis treats the fatigue assessment process of steel bridges. The purpose is to identify areas with potential of enhancement with an overall aim of attaining a longer service life. The aging bridge stock in Sweden and in many other developed countries is an impending economical burden. READ MORE

  2. 2. Fatigue Assessment of Cast Components Influence of Cast Defects

    University dissertation from Stockholm : KTH

    Author : Anders Björkblad; KTH.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cast nodular iron; fatigue; design rules; fracture mechanics; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract :  This thesis is on the fatigue assessment of cast components with special attention to defects. The primary material in view is nodular cast iron, but also cast steel is considered. However, the fatigue behaviour is in principle valid for general use on other cast metals. READ MORE

  3. 3. Fibromyalgia and chronic widespread pain. Dimensions of fatigue and effects of physiotherapy

    University dissertation from Göteborg : University of Gothenburg

    Author : Anna Ericsson; Göteborgs universitet.; Gothenburg University.; [2012]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; fatigue; fibromyalgia; chronic pain; widespread pain; assessment; physiotherapy; exercise; education;

    Abstract : Aims. Fatigue is a severe problem for patients with fibromyalgia (FM) and chronic widespread pain (CWP). READ MORE

  4. 4. Fatigue Assessment and Extreme Response Prediction of Ship Structures

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Wengang Mao; Göteborgs universitet.; Gothenburg University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fatigue assessment; extreme response; rainflow; narrow-band approximation; Laplace Moving Average model; transformed Gaussian; zero up-crossing response frequency; significant wave height; safety index; upcrossing spectrum; long term cumulative distribution function; ship routing.;

    Abstract : In this thesis, a simplified narrow-band approximation model is proposed to estimate fatigue damage of ship structures, and an efficient method for extreme response predictions is also developed using upcrossing spectrums of ship responses.The proposed fatigue model includes two main parameters, significant stress range hs and zero upcrossing frequency fz. READ MORE

  5. 5. Fatigue properties of cut and welded high strength steels Quality aspects in design and production

    University dissertation from KTH Royal Institute of Technology

    Author : Thomas Stenberg; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Welding; Fatigue assessment; Cutting; Weld quality; Fatigue design; Fracture Mechanics; Farkostteknik; Vehicle and Maritime Engineering;

    Abstract : This doctoral thesis concerns fatigue of welded structures. Welding is one of the world’s most common joining methods and it is frequently used in several structural applications in many fields. Some examples are construction vehicles, loader cranes, trucks, busses, forestry and agricultural machines, bridges and ships. READ MORE