Sökning: "Material failure model"

Visar resultat 16 - 20 av 145 uppsatser innehållade orden Material failure model.

  1. 16. Design and evaluation of a shock load resistant dynamic chain plate

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

    Författare :Daniel Olsson; [2022]
    Nyckelord :Dynamic; chain; shock load; Simulink; FEA; conveyor; wear; experimental; Nordic Quick Systems; chain plate; Simulation; FEM;

    Sammanfattning : Conveyor chains are often subject to repetitive shock loads during normal operations. This can cause accelerated wear in the chain leading to premature chain replacementor chain failure (Otoshi, 1997, p. 4). In this thesis a new approach for reducingshock load related wear in conveyor chains is proposed. LÄS MER

  3. 17. Resource Simulation of Machining Processes and Operator Optimization : A Generic Model

    Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknik

    Författare :Akshay Goyal; [2022]
    Nyckelord :Resource allocation; simulation; resource optimization; Generic Model;

    Sammanfattning : Purpose – The purpose is to present a Generic Model that considers the machining process's resource simulation into account as well as the operator variables. The operator variables are associated with the operations they carry out, the time required, and the ideal number of operators. LÄS MER

  4. 18. 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

  5. 19. In-plane bi-axial testing of thin paper

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Asad Ali; Danay Michael; [2022]
    Nyckelord :;

    Sammanfattning : During its lifetime, a beverage package is subjected to a complex loading history where the loading, in general, is multiaxial. Hence, to optimize the performance of the package, knowledge of the material’s anisotropic multi-axial deformation and subsequent failure is necessary. LÄS MER

  7. 20. Inducing sustainability innovations through public procurement

    Magister-uppsats, Lunds universitet/Företagsekonomiska institutionen

    Författare :Anton Percy; Amos Pietzcker; [2022]
    Nyckelord :Public transport; Demand side innovation; Public procurement; Sustainability innovations; Business and Economics;

    Sammanfattning : Aim of the study: The study aims to investigate the theoretical gap on how sustainability innovations can be induced through demand-side innovations within public procurement. Theoretical perspective: This paper utilizes transaction cost economics theory to describe the contractual relationship between PTAs and PTOs within public procurement in the public transport industry. LÄS MER