Sökning: "Digital material"

Visar resultat 36 - 40 av 832 avhandlingar innehållade orden Digital material.

  1. 36. Modelling of Forming and Welding in Alloy 718

    Författare :Lluís Pérez Caro; Mats Oldenburg; Eva-Lis Odenberger; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Forming; welding; Alloy 718; damage; GISSMO; failure; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : The reduction of fuel consumption and carbon dioxide emissions are currently a key factor for the aviation industry due to major concerns about climate change and more restrictive environmental laws. One way to reduce both fuel consumption and CO2 emissions is by significantly decreasing the vehicle’s weight while increasing engine's efficiency. LÄS MER

  3. 37. Method Development for Characterisation of Superalloy used in Containment Design

    Författare :Ted Sjöberg; Mats Oldenburg; Jörgen Kajberg; Odd Geir Lademo; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Due to the trend of increasing environmental demands put on civil aviation, manufacturersof commercial aircraft engines meet increased pressure to reduce weight. Modernturbofan engines represent up to almost one tenth of an aircraft's total weight, meaning areduction of engine component weight of just 30 kg is estimated to reduce CO2 emissionsby 400 tonnes over the lifetime of a medium sized commercial aircraft. LÄS MER

  4. 38. On Transfer of Work Material to Tools

    Författare :Jannica Heinrichs; Staffan Jacobson; Urban Wiklund; Uppsala universitet; []
    Nyckelord :Tribology; Friction; Forming; Cutting; Galling; Material transfer; Tribological coatings; Surface finish; Micro mechanisms; Aluminium; Materialvetenskap; Materials Science;

    Sammanfattning : Bulk forming and cutting are widely used to shape metals in industrial production. Bulk forming is characterized by large strains, extensive plastic deformation and large surface expansions. Cutting is characterized by high speeds, high pressures and high temperatures. LÄS MER

  5. 39. Particle Methods for Modelling Granular Material Flow

    Författare :Simon Larsson; Pär Jonsén; Hans-Åke Häggblad; Gustaf Gustafsson; Eugenio Oñate; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Granular materials are very abundant in nature and are often used in industry, wherethe dynamics of granular material ow is of relevance in many processes. There arestrong economic and environmental incentives for increased eciency in handling andtransporting granular materials. LÄS MER

  7. 40. Modelling and Characterisation of Granular Material Flow

    Författare :Simon Larsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Granular materials are very common both in nature and in industry, and their extensive use means that there are financial incentives for increased efficiency. There are huge costs related to their use and handling, which is a major motivation for increased knowledge of the behaviour of granular materials at different loading conditions. LÄS MER