Sökning: "Micromechanics"

Visar resultat 6 - 10 av 37 avhandlingar innehållade ordet Micromechanics.

  1. 6. Micromechanics of foam flows

    Författare :Galina Shugai; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 7. Wafer Bonding - Problems and Possibilities

    Författare :Mats Bergh; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SOI; atomic force microscope; micromechanics; compliant substrates; wafer bonding; semi-insulating silicon; AFM; surface chemistry; diamond; silicon on insulator; aluminium nitride; microelectronics; surface roughness;

    Sammanfattning : The wafer bonding technology offers a unique opportunity to combine different materials. This has been used for the realisation of novel silicon on insulator (SOI) structures. By replacing the buried silicon dioxide layer with a polycrystalline diamond film the thermal properties of the SOI structure are improved. LÄS MER

  4. 8. Elasticity of Cellulose Nanofibril Materials

    Författare :Gabriella Josefsson; E. Kristofer Gamstedt; Karin de Borst; Uppsala universitet; []
    Nyckelord :Cellulose nanofibrils; Elastic properties; Micromechanics; Composites; Engineering science with specialization in Applied Mechanics; Teknisk fysik med inriktning mot tillämpad mekanik;

    Sammanfattning : The demand for renewable load-carrying materials is increasing with increasing environmental awareness. Alternative sources for materials manufacturing and design have to be investigated in order to replace the non-biodegradable materials. LÄS MER

  5. 9. Micromechanical modeling using computational homogenization

    Författare :Ola Kristensson; Mekanik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metal technology; metallurgy; metal products; Metallurgi; materialteknik; Materiallära; Material technology; numerics; micromechanics; homogenization;

    Sammanfattning : This thesis addresses micromechanical modeling of materials using computational homogenization. On this topic, theoretical and computational issues are discussed, and numerical investigations of different material systems are performed. LÄS MER

  7. 10. Beam-to-Beam Contact and Its Application to Micromechanical Simulation of Fiber Networks

    Författare :Hamid Reza Motamedian; Artem Kulachenko; Umberto Perego; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fiber network; beam-to-beam contact; rotational contact; non-consistent; simulation; finite element; multiscale; microscale; micromechanics; paper; refining; beating; fine; hygroexpansion; shrinkage; drying; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : This doctoral thesis covers the topic of modeling the three-dimensional fiber net- works with the finite element method. It contains the part addressing the numerical aspects of the modeling, namely, the contact formulation and application of the developed methods to the fundamental questions such as the effect of randomness in fiber properties and effect of fines and hygroexpansion. LÄS MER