Sökning: "Strain rate dependency"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Strain rate dependency.

  1. 1. Validation of Finite Element Model of a Tetra Pak Package

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Warsame Mohamed Ali; Abdullahi Abdi Hashi; [2023]
    Nyckelord :Abaqus; HDPE; Package testing; Validation; Abaqus; HDPE; Pakettestning; Validering;

    Sammanfattning : There is a high dependency on accurate finite element models in the packaging industry for concept selection, design and virtual validation of packages. One of themost used materials for these packages is High-Density Polyethylene (HDPE). Thismaterial is highly anisotropic, strain rate dependent and has different behavior intension and compression. LÄS MER

  3. 2. Material Characterization and Blade Impact Simulation

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Gustaf Bodare; [2022]
    Nyckelord :Strain rate dependency; Split-Hopkinson pressure bar; Digital image correlation; LS-DYNA; FEM; SPG;

    Sammanfattning : Blades used on brushcutters and lawn mowers are subjected to a wide variety of working conditions. Besides continuous loads from cutting grass, the blades are also subjected to accidental impacts of branches, stones and structures. LÄS MER

  4. 3. Linear Impact of Bicycle Helmet – Experimental Testing and FE-modelling

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Ludvig Dahlin; Ebba Larsson Regnström; [2022]
    Nyckelord :FEM; Finite element method; bicycle helmet; impact modelling; solid mechanics; FEM; Finita element-metoden; cykelhjälm; islagsmodellering; hållfasthetslära;

    Sammanfattning : The aim with this master thesis was to set up a FE-simulation of an impact test of a bike helmet in LS-DYNA that correlates well with the peak acceleration score of a real life impact test. Furthermore, a parametric study has been performed in LS DYNA to investigate the robustness of the model, as well as to see which parameters have a great influence on the peak acceleration score. LÄS MER

  5. 4. Microstructural evolution of ice under simple shear deformation

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Carina Liebl; [2021-01-11]
    Nyckelord :;

    Sammanfattning : To investigate microstructure in ice deformed under simple shear conditions experiments were performed with artificial polycrystalline ice and natural ice samples form Vatnajökull glacier in Iceland. A new deformation apparatus was tested and results from deformation were compared to literature to validate the method. LÄS MER

  7. 5. Material parameter identification of a thermoplastic using full-field calibration

    Master-uppsats, Linköpings universitet/Mekanik och hållfasthetslära

    Författare :Nikhil Prabhu; [2020]
    Nyckelord :DIC; FFC; Thermoplastics; Material parameter identification; multi-point history; Polyamide 6; GISSMO; Response Surface Methodology;

    Sammanfattning : Finite element simulation of thermoplastic components is gaining importance as the companies aim to avoid overdesign of the components. Cost of the component can be minimized by using an adequate amount of material for its application. LÄS MER