Sökning: "Fatigue"

Visar resultat 1 - 5 av 778 avhandlingar innehållade ordet Fatigue.

  1. 1. Fatigue och återhämtning efter hjärtinfarkt

    Detta är en avhandling från Göteborg : Institutionen för vårdvetenskap och hälsa vid Sahlgrenska akademin, Göteborgs universitet

    Författare :Ulla Fredriksson-Larsson; Högskolan Väst.; Göteborgs universitet.; Gothenburg University.; [2015]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vårdvetenskap; Nursing science; Coping strategies; fatigue; grounded theory; myocardial infarction; nursing; person-centeredness; psychometric evaluation; Rasch analysis; stress; symptom assessment; symptom experience; symptom research; The Multidimensional Fatigue Inventory-20 MFI-20 ; Fatigue; Myocardial infarction; Symptom experience; Psychometric evaluation;

    Sammanfattning : Fast and efficient acute medical treatment of myocardial infarction (MI) has developed during recent years and has resulted in a reduced number of days spent in hospital and increased survival. To optimize persons’ recovery, secondary preventive strategies are important. LÄS MER

  2. 2. Very high cycle fatigue of high performance steels

    Detta är en avhandling från Karlstad : Karlstad University

    Författare :Vitaliy Kazymyrovych; Karlstads universitet.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Materials Engineering; fatigue; tool steels; ultrasonic testing; fatigue life; crack growth rate; fatigue mechanisms;

    Sammanfattning : Many engineering components reach a finite fatigue life well above 109 load cycles. Some examples of such components are found in airplanes, automobiles or high speed trains. For some materials the fatigue failures have lately been found to occur well after 107 load cycles, namely in the Very High Cycle Fatigue (VHCF) range. LÄS MER

  3. 3. Fatigue strength of engineering materials the influence of environment and porosity

    Detta är en avhandling från Stockholm : KTH

    Författare :Jan Linder; KTH.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stainless steel; cast aluminium; hardened steels; fatigue; corrosion; crack propagation; spot weld; porosity; TECHNOLOGY Materials science Other materials science; TEKNIKVETENSKAP Teknisk materialvetenskap Övrig teknisk materialvetenskap;

    Sammanfattning : The objective of this work was to use LEFM in order to assess the detrimental influence of surrounding chloride-containing environments for stainless steels, hardened steel as well as for a cast aluminium alloy. An additional aim was also to use LEFM to assess the influence of porosity on the fatigue properties for different commercial cast aluminium alloys and manufacturing methods. LÄS MER

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

    Detta är en avhandling från Stockholm : KTH

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

    Sammanfattning :  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. LÄS MER

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

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Zhiyuan Li; [2011]
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER