Sökning: "thermal cyclic fatigue life"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden thermal cyclic fatigue life.

  1. 1. Polymer Aging Mechanics : An investigation on a Thermoset Polymer used in the Exterior Structure of a Heavy-duty Vehicle

    Master-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Basil Abu-Ragheef; [2019]
    Nyckelord :polyDicyclopentadiene; aging; thermosets; fatigue; mechanical properties; thermal fatigue; digital image correlation; viscoelasticity; polymer degradation; thermo-oxidation; photo-oxidation;

    Sammanfattning : The use of plastic materials in the design of vehicle components is primarily driven by the need for vehicle weight and cost reduction. Additionally, these materials give design engineers freedom in creating appealing exterior designs. LÄS MER

  3. 2. Skräddad mikrostruktur av gadolinium zirkonat baserade värmebarriärbeläggningar som utsätts för termisk cyklisk utmattning

    Magister-uppsats, Högskolan Väst/Avdelningen för avverkande och additativa tillverkningsprocesser (AAT)

    Författare :Cliff Hamatuli; [2017]
    Nyckelord :Suspension Plasma Spray; Gadolinium Zirconate; Thermal cyclic fatigue;

    Sammanfattning : Yttria Stabilized Zirconia (YSZ) is the standard ceramic top coat material used for TBC application. Above 1200°C, issues such as CMAS (Calcium Magnesium Alumino Silicates) infiltration susceptibility, phase instability and high sintering rates limits its long durability. LÄS MER

  4. 3. Termisk cyklisk utmattning studie av Gd2Zr2O7 / YSZ flerskikts termiska barriärbeläggningar

    Magister-uppsats, Högskolan Väst/Avd för tillverkningsprocesser

    Författare :Naga Sai Pavan Rahul Gokavarapu; [2015]
    Nyckelord :Thermal barrier coatings; suspension plasma spraying; thermal cyclic fatigue life; yttria stabilized zirconate YSZ ; gadolinium zirconate GZ ;

    Sammanfattning : From many years YSZ is used as the top coat material for TBC's, as it has good phase stability up to 1200°C, higher fracture toughness, lower thermal conductivity, erosion resistance & higher coefficient of thermal expansion. But, it has a drawbacks at high temperature such as sintering and transformation of phases. LÄS MER

  5. 4. Thermo-mechanical fatigue of castiron for engine applications

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Niklas Collin; [2014]
    Nyckelord :Thermo-mechanical fatigue; TMF; CGI; LGI; fatigue; thermal strain.; Termomekanisk utmattning; TMF; CGI; LGI; termisk töjning.;

    Sammanfattning : In an engine component the repeated start-stop cycles cause temporal and local inhomogeneous temperatures, which in turn lead to a type of low-frequency loading, plastic deformation and eventually failure due to thermo-mechanical fatigue. Simultaneously, high-frequency mechanical loading arises from the cyclic combustion pressure and from road induced vibrations. LÄS MER

  7. 5. Thermo-mechanical fatigue of castiron for engine applications

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Niklas Collin; [2014]
    Nyckelord :Thermo-mechanical fatigue; TMF; CGI; LGI; fatigue; thermal strain; Termomekanisk utmattning; TMF; CGI; LGI; termisk töjning;

    Sammanfattning : In an engine component the repeated start-stop cycles cause temporal and local inhomogeneous temperatures, which in turn lead to a type of low-frequency loading, plastic deformation and eventually failure due to thermo-mechanical fatigue. Simultaneously, high-frequency mechanical loading arises from the cyclic combustion pressure and from road induced vibrations. LÄS MER