Essays about: "töjning"

Showing result 26 - 30 of 32 essays containing the word töjning.

  1. 26. A digital image correlation method for detection of fatigue cracks in non-load carrying T-joints

    University essay from KTH/Lättkonstruktioner

    Author : Björn Jonsson; [2018]
    Keywords : ;

    Abstract : In dynamical loaded welded structures fatigue life is often a limiting factor. Common practise is to reduce nominal stress by increased material thickness which leads to oversized, heavy structures. Those practises are replaced by improvement of production and designingtechniques to utilize better properties of high strength steels. READ MORE

  3. 27. Influence of patterns in paper-based strips onmechanical properties

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Ewan Beattie; [2018]
    Keywords : Metamaterial; Kirigami; venepuncture; Metamaterial; Kirigami; venpunktur;

    Abstract : This project set out to determine, by experimentation, what changes could be made to the material properties of paper-based strips by making different patterns of incisions. The purpose of the project was to evaluate the possibilities of paper-based strips as tourniquets in clinical use for venepuncture, in which a hypodermic needle is inserted into a vein. READ MORE

  4. 28. Optimization of Extreme Environment Cyclic Testing : Analysis of thermal cycle load cases on a plastic cab component through simulation and testing

    University essay from KTH/Fordonsdynamik

    Author : John Sedin; [2016]
    Keywords : ;

    Abstract : The purpose of this Master thesis was to deepen the knowledge and understanding regarding control parameters for the Extreme Environment Cyclic Testing (EECT) on interior and exterior cab components. The investigated parameters were temperature gradient, length of the warm and cold sections and number of cycles. READ MORE

  5. 29. Verification of the response of a concrete arch dam subjected to seasonal temperature variations

    University essay from KTH/Betongbyggnad

    Author : Oskar Andersson; Max Seppälä; [2015]
    Keywords : Concrete arch dams; thermal effects; ice load; condition monitoring; finite element analysis; Betongvalvdammar; termiska effekter; tillståndsövervakning; islast; finita element analys;

    Abstract : Many dams existing today were constructed around fifty years ago. Condition monitoring is essential for maintaining high safety and determining the current level of safety and stability for these dams. There is a need for new monitoring techniques and finite element coupled monitoring could be one of these techniques. READ MORE

  6. 30. Thermo-mechanical fatigue of castiron for engine applications

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Niklas Collin; [2014]
    Keywords : Thermo-mechanical fatigue; TMF; CGI; LGI; fatigue; thermal strain.; Termomekanisk utmattning; TMF; CGI; LGI; termisk töjning.;

    Abstract : In an engine component the repeated start-stop cycles cause temporal and local inhomogeneous temperatures, which in turn lead to a type of low-frequency loading, plastic deformation and eventually failure due to thermo-mechanical fatigue. Simultaneously, high-frequency mechanical loading arises from the cyclic combustion pressure and from road induced vibrations. READ MORE