Search for dissertations about: "punch through test"

Found 3 swedish dissertations containing the words punch through test.

  2. 1. Nonlinear Numerical Simulations of Interactions Between Ice Rubble and Structure

    Author : Aniket Patil; Andrzej Cwirzen; Björnar Sand; Lennart Fransson; Knut Vilhelm Høyland; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ice mechanics; ice rubble; sea ice ridges; punch through test; shear box test; friction coefficient; cohesive element method; smoothed particle hydrodynamics; continuous surface cap model; numerical modelling; Byggkonstruktion; Structural Engineering;

    Abstract : This research is focused on three distinct but interconnecting topics:1) investigation of physical and mechanical properties of ice rubble, 2) material modelling of ice rubble, 3) numerical simulation of the interaction between ice rubble structure interaction. large scatter in the values of physical and mechanical properties of ice rubble can be seen in the literature due to non-standardised methods. READ MORE

  4. 2. Dynamic avalanche in Si and 4H-SiC power diodes

    Author : Martin Domeij; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Abstract : Semiconductor power modules for the control of high currentsand high voltages have important applications in motor drives,traction and power transmission. Dynamic avalanche is of atechnological interest since it may limit the safe operatingarea for bipolar switching devices and for power diodes, whichare important integral parts of a power module. READ MORE

  5. 3. Keratinocyte differentiation. Involvement of the growth hormon (GH)/insulinlike growth factor1 (IGFI) axis and IGF1 post receptor signaling

    Author : Elisabeth Björntorp Mark; Göteborgs universitet; []
    Keywords : IGF1R; GH; Id1; keratinocytes; psoriasis;

    Abstract : At cellular level, little is known about the genes that regulate keratinocyte differentiation andproliferation. Psoriasis is regarded as a T-cell mediated inflammatory disease with hyperproliferativekeratinocytes. READ MORE