Sökning: "Ramberg-Osgood"

Hittade 3 uppsatser innehållade ordet Ramberg-Osgood.

  1. 1. Material characterization of long-term stress relaxation in a semi-crystalline polymer material : An experimental and numerical study

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola

    Författare :Jakob Görtz; [2021]
    Nyckelord :Abaqus; MCalibration; PRF; HDPE; Stress relaxation; Long-term testing; Theoretical expressions; Material calibration;

    Sammanfattning : As the plastic and packaging industry is looking to increase the longevity of plastic products as well as recycling used material, there is a need to understand how material properties respond and change during long periods of mechanical loading. Physical tensile experiments on thin plant-based High-Density Polyethylene (HDPE) are conducted with the intent of capturing relaxation behavior from a short-term (1-3 hours) and long-term (29-56 days) perspective. LÄS MER

  3. 2. Improved methodology for postulated fuel handling accident

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/Hållfasthetslära

    Författare :Max Fagerberg; [2020]
    Nyckelord :ANSYS LS-DYNA; FEM; nuclear fuel; solid mechanics; Technology and Engineering;

    Sammanfattning : This report presents a suggestion of an improved method for evaluation of a fuel handling accidents. Using a 3D FE-model and ANSYS LS-DYNA EXT the structural analysis is carried out. Importing geometry from SpaceClaim and simplifying it creates the geometry used in this analysis. LÄS MER

  4. 3. Aluminium foil at multiple length scales, mechanical tests and numerical simulations in Abaqus

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära

    Författare :Christoffer Malmberg; Britta Käck; [2015]
    Nyckelord :DIC; tensile test; Ramberg-Osgood; Hill; Hall Petch; microstructure; Technology and Engineering;

    Sammanfattning : During its lifetime a beverage package is exerted to different loading conditions. Therefore an increased knowledge is needed to know how the packaging, and thus the thin layer of aluminium foil in the package, reacts to the prevailing loading scenario in a real case situation. LÄS MER