Sökning: "Single fracture"

Visar resultat 1 - 5 av 33 uppsatser innehållade orden Single fracture.

  1. 1. The Influence of Roughness on Electrical Properties of Single Rock Fractures

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Yu Hou; [2023]
    Nyckelord :Single fracture; Roughness; Current; Electrical properties; Relative standard deviation; Numerical simulations; Enkelfraktur; Grovhet; Ström; Elektriska egenskaper; Relativ standardavvikelse; Numeriska simuleringar;

    Sammanfattning : To investigate the relationship between the structural characteristics of rough single fracturesand the electrical properties of the rock. In this study, a series of physical models of roughand smooth single fractures were established using the finite element method and Ohm's lawto test the electrical conductivity. LÄS MER

  3. 2. Idealised remediation scenario in two small-scale intersecting fractures

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Agnes Zúniga Ekenberg; [2022]
    Nyckelord :;

    Sammanfattning : Analysis of mass transport in rock fractures has become increasingly important in underground storage of radioactive materials and remediation of polluted groundwater in fractured rock aquifers. Permeability of rock mass is regulated by present rock fractures, where flow is mainly through the fracture networks. LÄS MER

  4. 3. The Effect of Alternative Tungsten Carbide Grain Size Distribution on Microstructure and Mechanical Properties in Cemented Carbides

    Master-uppsats, KTH/Materialvetenskap

    Författare :Filip Ivarsson; [2022]
    Nyckelord :Cemented Carbides; WC Grain Size Distribution; Mechanical Properties; Microstructure Analysis; Hårdmetall; WC Kornstorleksfördelning; Mekaniska Egenskaper; Mikrostruktur Analys;

    Sammanfattning : In the constant pursuit of better-performing cemented carbides, recent studies suggest that a combination of better hardness and toughness can be obtained by changing its WC grain size distribution. As the area is still rather unexplored, this  thesis  aims  to  broaden  the  knowledge  and  answer  whether mechanical properties can be changed by changing the WC grain size distribution, in the context of mining drill bit inserts. LÄS MER

  5. 4. Fatigue Crack Growth Analysis in Python algorithm with Finite Element Methods : Numerical Simulation of Fatigue Crack Growth

    Master-uppsats, Karlstads universitet

    Författare :Hasan Majid; [2022]
    Nyckelord :;

    Sammanfattning : The goal of this thesis was to construct and develop a python-based finite element computer program for the evaluation of fatigue crack growth rate in notched metallic rods. The simulation was done by implementing elastic stress theory and linear elastic fracture mechanics techniques. LÄS MER

  7. 5. Factors related to vertical root fractures in teeth restored with prosthetic single crowns: A retrospective clinical study

    Master-uppsats, Malmö universitet/Odontologiska fakulteten (OD)

    Författare :Sham Al-Hotheiry; Mustafa Spahic; [2022]
    Nyckelord :Vertical root fracture;

    Sammanfattning : Purpose The aim of the present retrospective clinical study was to investigate the factors that could be associated with the occurrence of vertical root fractures regarding tooth-supported single crowns (VRF). Materials and methods This dental record-based retrospective study included patients treated with tooth-supported single crowns during from October 2008 to December 2010 at the Faculty of Odontology, Malmö University, Sweden. LÄS MER