Sökning: "Granular mechanics"

Hittade 4 uppsatser innehållade orden Granular mechanics.

  1. 1. Exploring intra-granular strain in granular systems under mechanical load using scanning 3DXRD

    Kandidat-uppsats, Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/Hållfasthetslära

    Författare :Philip Vestin; [2021]
    Nyckelord :Granular mechanics; 3DXRD; x-ray diffraction; Python; Physics and Astronomy; Technology and Engineering;

    Sammanfattning : This dissertation serves to explain the theory behind three-dimensional scanning x-ray diffraction while at the same time connecting the theory to a software package used for processing data obtained from measurements using scanning x-ray diffraction. This software package is then used and built upon to analyse the data obtained from the measurement of a sample of 12 silica grains subject to an uniaxial load of 60 N. LÄS MER

  3. 2. An Investigation of the breakage process of particles : With help of experimental results and discrete element methods

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Ronni Bashiry; [2021]
    Nyckelord :Geotechnical Engineering; Breakage; Fracture; Spherical particles; DEM; Modelling; Numerical modelling;

    Sammanfattning : In this study the breakage mechanics of brittle glass marbles was investigated. The pro-cess was to firstly investigate them in laboratory environment. The marbles or specimens was loaded until a crushing breakage occurred in a single point load test called Single Sphere Point load test in this document. LÄS MER

  4. 3. Numerical analysis of vibrations due to impact pile driving

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

    Författare :Sebastian Andersson Olivecrona; Rasmus Sulander; [2016]
    Nyckelord :Finite element method; Concrete pile; Impact pile driving; Ground vibrations; Soil mechanics; Soil dynamics; COMSOL Multiphysics; Technology and Engineering;

    Sammanfattning : Vibrations originating from constructional work can affect the nearby soil and structures. Depending on the properties of the vibrations, these can result in settlements in the soil and damages to existing structures. Along with blasting, impact pile driving is one of the greatest sources of vibrations on a construction site. LÄS MER

  5. 4. FEM-simulering av nedbrytning hos obundet material vid upprepad belastning

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Geoteknik

    Författare :Domiyan Hammadi; [2012]
    Nyckelord :Geotechnical engineering; Road design; Numerical methods; COMSOL MULTIPHYSICS; Unbound granular material; k-θ model; Permanent deformation; HVS-test; Technology and Engineering;

    Sammanfattning : Traditionally, the underground problems have been handled in the topic geotechnical engineering. Within geotechnical engineering FEM has in recent years begun to be used to solve problems in the soil mechanics. The soil mechanical relations are also applicable to the superstructure materials. LÄS MER