Search for dissertations about: "foam core"

Showing result 1 - 5 of 18 swedish dissertations containing the words foam core.

  2. 1. Foam Core Materials for High Performance Sandwich Constructions: Preparation, Testing and Properties

    Author : Mikael Danielsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; IPN; core material; low temperature; polyurea; polyethersulfone; gradient structure; foam; PVC; sandwich; waste; fire; smoke; toxicity; mechanical properties; Inter Penetrating Polymer Network; dynamic properties; high temperature;

    Abstract : The basic task for foams used as core materials in sandwich constructions is to separate the skin layers in order to enhance stiffness with little contribution to the total weight. However, modern design in sandwich technology require that core materials contribute to the perfor-mance with specific mechanical and physical properties. READ MORE

  4. 2. Failure of Sandwich Structures with Sub-Interface Damage

    Author : Andrey Shipsha; KTH; []
    Keywords : sandwich structure; foam core; fatigue; crack growth; stress intensity factor; fatigue threshold; fracture toughness; damage tolerance; impact damage; crushed core; bridging; fracture analysis; point-stress criterion;

    Abstract : .... READ MORE

  5. 3. Manufacturing and characterization of nanomaterials for low-temperature sintering and electronics thermal management applications

    Author : Abdelhafid Zehri; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-elements alloyed nanoparticles; sintering aid; PCM; phase change materials; graphene coating; heat spreader; graphene foam; nanofluids;

    Abstract : Nanotechnology is expected to have a significant impact on the long-term development within and across many disciplines. While offering potential improvements in energy efficiency and reduced energy and materials consumption, nanomaterials are at the centre of the cutting-edge technologies and sustainable manufacturing processes era with near half of the products in the next period of 10 years expected to embed nanoscale solutions. READ MORE

  6. 4. Engineering inorganic nanostructured composites for boosting H2 and O2 evolution reactions

    Author : Getachew Solomon; Isabella Concina; Alberto Vomiero; Sixto Gimenez; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrogen evolution HER ; Oxygen evolution reaction OER ; Oxygen reduction reaction ORR ; Water splitting; Electrocatalyst; Atomic layer deposition; Core-shell structure; Experimentell fysik; Experimental Physics;

    Abstract : Hydrogen is considered a promising energy source with zero emission of CO2; it can provide higher energy density compared to other sources of energy. The amount at which H2 is produced, and the method of production need further improvement for the advancement of hydrogen energy technologies. READ MORE

  7. 5. Compression moulding of thermoplastic composite sandwich components

    Author : Malin Åkermo; KTH; []
    Keywords : ;

    Abstract : The thesis investigates various aspects of compressionmoulding of sandwich components with thermoplastic-basedcomposite faces and thermoplastic or thermoset core.Compression moulding of glass/polypropylene (PP) faces toexpanded PP core is initially experimentally investigated usinga statistical experimental design approach. READ MORE