Search for dissertations about: "fibre shape"

Showing result 16 - 20 of 62 swedish dissertations containing the words fibre shape.

  2. 16. Residual stresses and shape distortion in composite structures

    Author : J. Magnus Svanberg; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : High performance composites usually consist of continuous fibres and a thermoset matrix. One well-known example from the aerospace industry is carbon fibre epoxy composites. For that reason the manufacturing processes of thermoset composites are subject to extensive research. READ MORE

  4. 17. Wood fibre deformation in combined shear and compression

    Author : Federica De Magistris; Anders Eriksson; Ola Dahlblom; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Arcan; compression; density; energy; finite element analysis; Iosipescu; Picea abies; shear; wood; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Abstract : Mechanical pulping for producing pulps from softwood suitable for printing grade papers, like news, is a highly energy-intensive process consuming around 2000 kWh/t in electrical energy. Due to increasing energy costs and environmental issues there is a high demand for decreasing this energy consumption. READ MORE

  5. 18. An Experimental Investigation of Shape Distortions in Aerospace Composites

    Author : Erik Hörberg; Malin Åkermo; Stefan Hallström; Patrik Fernberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flyg- och rymdteknik; Aerospace Engineering;

    Abstract : Composite materials are increasingly used in primary structure of modern commercial aircraft. Its excellent material characteristics enables reduction of structural weight compared to traditional metal solutions and thereby offers reduction of fuel consumption and carbon dioxide (CO2) emissions. READ MORE

  6. 19. Optical methods for tympanic membrane colour and shape assessment

    Author : Mikael Sundberg; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Otitis media is one of the most common diseases of childhood. Increasing antibiotic resistance has lead to awareness of the importance of the diagnostic accuracy in otitis media. The recommended treatment of acute otitis media (AOM) involves antibiotics whereas in otitis media with effusion (OME) it does not. READ MORE

  7. 20. Fluid dynamics and flow structures of wood fibres suspended in gas flows

    Author : Olof Melander; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; two-fluid model; fibres; flocculation; multiphase flow; flow regimes; particle transport; fibre suspensions; Particle Image Velocimetry; Computational Fluid Dynamics; lift force; concentration measurement;

    Abstract : The flow of wood fibres suspended in gas plays a major role in the MDF (Medium Density Fibreboard) production process. Development of machinery in this industry has traditionally been based on experience. Only recently has the use of numerical methods such as CFD (Computational Fluid Dynamics) become an important part of the development process. READ MORE