Search for dissertations about: "thesis on welding life"

Showing result 21 - 25 of 27 swedish dissertations containing the words thesis on welding life.

  2. 21. Fatigue assessment of complex welded steel structures

    Author : Johan Martinsson; Jack Samuelsson; Wolfgang Fricke; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Abstract : To improve the usage of material in fatigue loaded complex welded structures a better calculation method (based on FEA) is needed than what is available on the market and an improved management of weld quality. Improved FE-procedures are directly applicable to design of generic structural components within virtually all industries using CAD and FEtools, irrespective of industrial sector. READ MORE

  4. 22. Detection and 3-D positioning of small defects using digital radiography, 3-D point reconstruction, and tracking

    Author : Erik Lindgren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pore Defects; Radiographic Testing; Nondestructive Evaluation; Laser Welded Titanium; Multiple Hypothesis Tracking; X-ray Testing;

    Abstract : The weight and quality concerned aero industry is constantly trying to decrease the excess material in their components. With decreased weight the fuel consumption can be lowered and the negative environmental effects from aviation decreased. READ MORE

  5. 23. Exploring toxicity and fate of metal-based particles in the lung : from mechanistic screening to lung deposition modelling

    Author : Sarah McCarrick; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : We are all exposed to small particles in the air that we breath and some of them will contain metals in a dose and form that may be harmful. In addition, the field of nanotechnology holds great promises, but an increased production of nanoparticles leads to a higher risk of exposure. READ MORE

  6. 24. Occupational exposure to particles in relation to chronic obstructive pulmonary disease and cardiovascular disease

    Author : Karin Grahn; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Objective The working life is expanding with increased retirement ages as the population is aging, in Sweden but in also other parts of the world. However, workers with poor health might not cope with working in higher ages. READ MORE

  7. 25. Coining Residual Stresses in Aluminium Ship Structures: Experiments and FE- simulations

    Author : Rutger Ogeman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The build-up and redistribution of residual stresses obtained by stress coining of aluminium plates containing a hole have been studied experimentally and numerically. The foil strain gauge technique has been employed to measure strains at the bore of a hole during and after the coining process. READ MORE