Sökning: "fracture process zone"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden fracture process zone.

  1. 1. 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

  3. 2. Characterization methodology to assess the mechanical properties of delignified birch/PMMA transparent wood biocomposites

    Master-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Nicolò Arcieri; [2022]
    Nyckelord :Transparent wood; mechanical properties; fracture toughness; in situ experiments; cohesive zone model; Transparent trä; mekaniska egenskaper; brottsstyrka; in situ-experiment; modell för kohesionszonen;

    Sammanfattning : Transparent trä biokompositer (TW) är en ny attraktiv klass av biokomposit. De är uppbyggda av delignifierat trä som impregnerats med en polymer med matchande brytningsindexet.  TW kan skräddarsys för inom ett brett spektrum av funktionella, optiska och mekaniska egenskaper. LÄS MER

  4. 3. Simulation of Delamination Migration in Laminated Composite Structures - An Approach Combining Extended Finite Elements and a Cohesive Zone Model

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära

    Författare :Viktor Björklund; [2018]
    Nyckelord :Crack propagation modeling; Fiber-reinforced polymer; Laminated composites; FRP; CFRP; Cohesive zone model; CZM; Delamination migration; FEM; XFEM; Fracture mechanics; Progressive damage modeling; Surface-based cohesive behaviour; Technology and Engineering;

    Sammanfattning : Fiber-reinforced polymer matrix composites are being used increasingly in lightweight applications where high strength and stiffness is required. One of the main challenges with designing components from such materials is to predict the ultimate strength and behaviour of the structure. LÄS MER

  5. 4. Multidisciplinary perspectives on a natural attenuation zone in a PCE-contaminated aquifer

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Robin Jansson; [2018]
    Nyckelord :DCIP; groundwater chemistry; Tetrachlorethene; PCE; natural attenuation; Earth and Environmental Sciences;

    Sammanfattning : The old dry-cleaner in Hagfors, is one of the most seriously tetrachloroethene (PCE) contaminated sites in Sweden. Ever since the pollution was discovered in the groundwater in the 1990s, the site has undergone remedi-ation two times with limited success. LÄS MER

  7. 5. A 4D Analysis of a Minor Graben Structure at Ekolsund, South Central Sweden

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Alexander Sehr; Andin Eric; [2017]
    Nyckelord :South central Sweden; pull apart basin; 3D brittle deformation model; reactivation; striation markers; Södra centrala Sverige; pull apart basin; 3D spröd deformationsmodell; reaktivering; striation markörer;

    Sammanfattning : The objective of this project is about a kinematic analysis of a shear zone, specifically a graben structure. The surface of the study area has also been investigated, this is to understand if a faulting reactivation has occurred due to glacial impact. LÄS MER