Search for dissertations about: "cracks"

Showing result 11 - 15 of 462 swedish dissertations containing the word cracks.

  2. 11. Simulation and Measurement of Wheel on Rail Fatigue and Wear

    Author : Babette Dirks; Mats Berg; Roger Enblom; Mark Burstow; KTH; []
    Keywords : multibody simulations; prediction; wear; RCF; wheel; rail; cracks; measurements; Vehicle and Maritime Engineering; Farkostteknik;

    Abstract : The life of railway wheels and rails has been decreasing in recent years. This is mainly caused by more traffic and running at higher vehicle speed. READ MORE

  4. 12. Processability of Laser Powder Bed Fusion of Alloy 247LC-Influence of process parameters on microstructure and defects

    Author : Olutayo Adegoke; Joel Andersson; Robert Pederson; Moataz Attallah; Högskolan Väst; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser powder bed fusion; Alloy 247LC; additive manufacturing; nickel-based superalloys; processability; cracks; voids; Laserpulverbäddssmältning; legering 247LC; additiv tillverkning; superlegeringar; processbarhet; sprickor; porositet.; Production Technology; Produktionsteknik;

    Abstract : This thesis is about laser powder bed fusion (L-PBF) of the nickel-basedsuperalloy Alloy 247LC. Alloy 247LC is mainly used in gas turbine blades and processing the blades with L-PBF may confer performance advantage over the blades manufactured with conventional methods. READ MORE

  5. 13. Cracks in the Ivory Tower : Antibiotics Research and the Changes in Academia 1980-2015

    Author : Carl Björvang; Alexandra Waluszewski; Lars Fälting; Oili-Helena Ylijoki; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; antibiotic research; academic capitalism; scientific discoveries; research policy; Swedish research; antibiotic resistance; antibacterial treatment; Ekonomisk historia; Economic History;

    Abstract : At the same time as resistance to antibiotics became an increasingly problematic health care concern around the world, major changes occurred in the condition scientists faced when conducting university-based research. This thesis aims to study these changes as they applied to antibacterial and bacteriological research, and how they influenced the researchers’ ability to make new scientific discoveries. READ MORE

  6. 14. A human factors perspective on non-destructive testing (NDT) : detection and identification of cracks

    Author : Johan Enkvist; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; non-destructive testing; Kognitiv psykologi;

    Abstract : .... READ MORE

  7. 15. Thermal stresses in load-bearing glass-timber components

    Author : Karin Lundstedt; Erik Serrano; Ola Dahlblom; Linnéuniversitetet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Thermal stresses; thermal failure; glass and wood construction; incident solar radiation; shading; cracks; temperature difference; finite element method.; Technology byts ev till Engineering ; Teknik;

    Abstract : Thermal stresses can arise in glass used in architectonic realisations in buildings as a result of solar irradiation:  that is, sunlight.  The magnitude of these thermal stresses depends on the temperature conditions in the glass in terms of the temperature differences between warm and cold areas. READ MORE