Sökning: "Pre-deformation"

Hittade 2 avhandlingar innehållade ordet Pre-deformation.

  1. 1. Effect of large shear deformation on fatigue crack behavior in pearlitic rail steel

    Författare :Daniel Gren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pearlitic steel; Anisotropy; Torsional loading; Fatigue crack propagation; Uniaxial loading; Pre-deformation;

    Sammanfattning : The impacts from global warming and climate change continue to rise and securing the needs of future generations requires a transition to a climate-neutral society. Rail transportation, as being one of the safest and most energy efficient modes of transportation offers a sustainable alternative to fossil-fueled based transportation. LÄS MER

  3. 2. Thermal Cycling, Creep- and Tensile Testing of Cast Exhaust Materials at Elevated Temperatures

    Författare :Christian Öberg; Stefan Jonsson; Henrik Östling; KTH; []
    Nyckelord :creep; constant-load; thermal cycling; tensile test; cast materials; cast iron; exhaust materials.; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : An exhaust manifold of a truck engine is subjected to tough conditions. As the truck is started, operated and shut down, it becomes subjected to thermal cycling up to around 800°C. At such high temperatures, corrosion, fatigue and creep are active degradation mechanisms. LÄS MER