Search for dissertations about: "Roberts Joffe"

Showing result 1 - 5 of 13 swedish dissertations containing the words Roberts Joffe.

  1. 1. Matrix cracking and interfacial debonding in polymer composites

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Roberts Joffe; Luleå tekniska universitet.; [1996]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymeric Composite Materials; Polymera konstruktionsmaterial;

    Abstract : .... READ MORE

  2. 2. Damage accumulation and stiffness degradation in composite laminates

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Roberts Joffe; Luleå tekniska universitet.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymeric Composite Materials; Polymera konstruktionsmaterial;

    Abstract : In the presented thesis analytical modeling of elastic properties degradation and modeling of damage evolution in composite laminates is performed. Transverse cracking initiation on a fiber/matrix level is briefly studied by testing model composites and cross-ply laminates. READ MORE

  3. 3. A novel composite material from recycled constituents

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Magdalena Szpieg; Luleå tekniska universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering mechanics - Mechanical manufacturing; Teknisk mekanik - Mekanisk tillverkningsteknik; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : The increasing industrial use of carbon fibre in e.g. aircraft and wind turbines calls for strategies for their recovery and possible reuse. In additional, tremendous amount of energy is needed to be able to manufacture pristine carbon fibres. READ MORE

  4. 4. Mechanical properties of flax fibers and their composites

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Edgars Sparnins; Luleå tekniska universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flax fibers; natural fiber composites; mechanical properties; Time dependent behavior; Materials science - Other material science; Teknisk materialvetenskap - Övrig teknisk materialvetenskap; Polymeric Composite Materials; Polymera konstruktionsmaterial;

    Abstract : Flax fibers, along with a number of other natural fibers, are being considered as an environmentally friendlier alternative of synthetic fibers in fiber-reinforced polymer composites. A common feature of natural fibers is a much higher variability of mechanical properties. READ MORE

  5. 5. Extrusion processing of wood raw materials for use in wood-polymer composites

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Maiju Hietala; Luleå tekniska universitet.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : The interest in wood-polymer composites and their use in different applications has been growing over the last 10-15 years. Environmental issues and demands on lower material costs are the driving forces behind the increasing use of renewable materials such as wood and other natural fibres as reinforcement in polymer composites. READ MORE