Sökning: "crack development"

Visar resultat 6 - 10 av 70 uppsatser innehållade orden crack development.

  1. 6. Shear Failure of Steel Fiber and Bar Reinforced Concrete Beams Without Stirrups : Predictions based on Nonlinear Finite Element Analyses

    Master-uppsats, KTH/Betongbyggnad

    Författare :David Andersson; [2022]
    Nyckelord :Nonlinear finite element analysis; Shear failure; Fiber reinforced concrete beams; ATENA;

    Sammanfattning : Shear failure in concrete beams are often brittle in nature and potentially dangerous without adequatereinforcing measures. In design of concrete, it is commonly recommended to install transversalreinforcement along the shear span to induce a more ductile structural response, improving the shearcapacity all together and providing sufficient warning prior to collapse. LÄS MER

  3. 7. Prestanda hos samverkanspelare : En kvantitativ studie om samverkanspelare är ett bättre val i framtidens byggindustri

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Tillämpad mekanik

    Författare :Martin Nilsson; Anders Sundeman; [2022]
    Nyckelord :Samverkanspelare; LCA; stål; betong; hållbarhet;

    Sammanfattning : Background: In a world where awareness in climate change is growing, humans need tofind new more sustainable ways towards prosperity and development. Theconstruction industry today is one of the industries where waste iscreated while pace of innovation is low compared to other industries. LÄS MER

  4. 8. Simulations of experimental crack development in ceramic material with notched specimen

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Clas Dahlin; [2022]
    Nyckelord :Solid Mechanics; Fracture mechanics; Ceramics; Dynamics; Ballistics; Hållfasthetslära; Brottmekanik; Keramer; Dynamik; Ballistik;

    Sammanfattning : Low-density armour often uses ceramic materials, as their high compressive strength and relatively low weight make the material ideal for moving in the field. The ballistic protection works by redirecting the plastic flow of the projectile radially, which reduces penetration. LÄS MER

  5. 9. Crosslinked Cartonboard - Challenges and possibilities

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

    Författare :Malin Elvin; [2022]
    Nyckelord :Cartonboard; crosslinking; mechanical properties; SCT;

    Sammanfattning : The need for sustainable packaging is growing, and plastic waste needs to be reduced. A suitable alternative could be fibre-based packaging and cartonboard, and several actions could enhance this alternative. This study investigates crosslinking, a method to create stronger bonds between the OH-groups in the material. LÄS MER

  7. 10. Investigating Particle Cracking in Single- and Polycrystalline Nickel-Rich Cathodes using In Situ Impedance Spectroscopy

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Mattias Sjödin; [2021]
    Nyckelord :Electrochemical surface area; particle cracking; NMC811; transmission-line model; equivalent-circuit fitting; commercial Li-ion batteries;

    Sammanfattning : State-of-the-art Li-ion cathode materials are based on LiMO2 (M=Ni, Mn, Co) layered transition metal oxides (denoted NMC) with Ni-rich composition because of their high specific capacity. Yet, these materials suffer from poor capacity retention due to crack formation during de-/lithiation cycling. LÄS MER