Sökning: "brittle fractures"
Visar resultat 1 - 5 av 9 uppsatser innehållade orden brittle fractures.
1. A Structural Analysis of the Fracture Sets in Gothenburg, Sweden: A Remote Sensing and Manual Lineament Approach
Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaperSammanfattning : The fracture-valley landscape within the Gothenburg region was analysed based on LiDAR-derived hillshade images as well as several sources of orthomosaics. Using a manual lineament interpretation approach and complimented with an objective fractal analysis software (FROST), the objective of the study was to characterise the regional fracture sets as well as attempt to link the sets to the complex regional geological history. LÄS MER
2. Microstructural evolution of ice under simple shear deformation
Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaperSammanfattning : 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
3. Kinetic interpretation of microstructures in the Gällivare area; implications for deformation phases and related metamorphic events.
Kandidat-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserSammanfattning : The goal of this study was to identify and describe different microstructures observed in samples from two major shear zones in the Gällivare area, namely the Nautanen Deformation Zone (NDZ), and the Fjällåsen deformation zone (FDZ). Thirteen samples were examined during this study. LÄS MER
4. Fastställning av orsak till prematurt brott i upphängningskomponenter : En studie för att fastställa orsak till brott i bladfjädrar
Kandidat-uppsats, Högskolan Dalarna/MaskinteknikSammanfattning : En haverianalys av två bladfjädrar som hade brustit under användning långt innan det förväntade intervallet har utförts. Detta gjordes genom analys i ett svepelektronmikroskop för att fastställa en karaktär på brotten och minska ner antalet bakomliggande orsaker. LÄS MER
5. Seismic tomography as an instrument for structural evaluation in the Printzsköld and Alliansen ore bodies, Malmberget
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserSammanfattning : The Malmberget deposit is one of the major apatite iron ores in Europe, located in northern Norrbotten. As the mining in Malmberget proceeds deeper more challenges with the stability have been faced. When the stress distribution of a rock mass exceeds the rock strength energy in form of seismic waves is released. LÄS MER