Sökning: "Solid mechanics"

Visar resultat 1 - 5 av 322 avhandlingar innehållade orden Solid mechanics.

  1. 1. Discrete element modelling of the mechanical behaviour of lithium-ion battery electrode layers

    Författare :Axel Lundkvist; Per-Lennart Larsson; Pär Jonsén; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-ion batteries; mechanical characterisation; simulations; contact mechanics; discrete element method; Litiumjonbatterier; mekanisk karakterisering; simuleringar; kontaktmekanik; diskret elementmetod; Teknisk mekanik; Engineering Mechanics; Solid Mechanics; Hållfasthetslära;

    Sammanfattning : Since their introduction in the late 20th century, lithium-ion batteries have become the leading battery technology for portable devices and electric vehicles due to their high energy density and rechargeability. However, the increasing demand for a longer battery life span is hindered by the fading of the battery’s charge capacity over prolonged use. LÄS MER

  3. 2. On the mechanics of actin and intermediate filament networks and their contribution to cellular mechanics

    Författare :Björn Fallqvist; Kroon Martin; Peter McHugh; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; actin; cell; mechanical; constitutive; intermediate; continuum; constitutive; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : The mechanical behaviour of cells is essential in ensuring continued physiological function, and deficiencies therein can result in a variety of diseases. Also, altered mechanical response of cells can in certain cases be an indicator of a diseased state, and even actively promoting progression of pathology. LÄS MER

  4. 3. A Fracture Mechanics Approach to Study Hydrogen Embrittlement in High Strength Martensitic Steels

    Författare :Armin E. Halilović; Pål Efsing; Jonas Faleskog; Carl F.O. Dahlberg; Covadonga Betegon; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid Mechanics; Hållfasthetslära;

    Sammanfattning : High strength steels that are subjected to hydrogen experience embrittlement where the mechanical properties are reduced, and premature failure of components may occur. Although the phenomenon has been recognized for over 150 years, it is not clear what drives embrittlement. LÄS MER

  5. 4. Impact damping and airplane towing : two studies of the response of solid bodies to transient loads

    Författare :Carlos Matuk; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : The impact of a linearly elastic hammer on a linearly viscoelastic plate is the first problem considered in this thesis. The results, obtained by using the Laplace transformation method, can be used in the design of impact protection devices. LÄS MER

  7. 5. On fiber network fracture mechanics and kink band formation in biocomposites

    Författare :Vedad Tojaga; Sören Östlund; Artem Kulachenko; T. Christian Gasser; Emanuela Bosco; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Staggered; Monolithic; Fracture; Constitutive modeling; Strong discontinuity approach SDA ; Simo-Reissner beam theory; Geometrically exact beam theory; Minimeringsalgoritm; Simo-Reissner balkteori; Icke kompatibla deformationsmode; Konstitutiva model; Solid Mechanics; Hållfasthetslära;

    Sammanfattning : This thesis summarizes seven appended papers dealing with: (1) The fracture of fibrous materials, e.g. LÄS MER