Sökning: "composite concepts"

Visar resultat 1 - 5 av 45 avhandlingar innehållade orden composite concepts.

  1. 1. Multi-Functional Composite Design Concepts for Rail Vehicle Car Bodies

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :David Wennberg; KTH.; KTH.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Car body; Composite; Finite element; Lightweight; Multi-discipline; Multi-functional; Optimisation; Rail Vehicles; Sandwich Panels;

    Sammanfattning : Structures and material combinations, tailored for multiple purposes, are within the reach of vehicle manufacturers. Besides reducing the environmental impact of the transportation sector these multi-functional structures can reduce costs, such as development, manufacturing and maintenance, and at the same time offer improved comfort to the passengers. LÄS MER

  2. 2. Fiber bridging concepts applied to short fiber composites

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Patrik Fernberg; [2000]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymeric Composite Materials; Polymera konstruktionsmaterial;

    Sammanfattning : Polymer composite materials are in wide-spread use in the transportation industry. In aerospace industry the use these materials are established while in automotive industry the interest is increasing. LÄS MER

  3. 3. Demokrati bortom politiken En begreppshistorisk analys av demokratibegreppet inom Sveriges socialdemokratiska arbetareparti 1919–1939

    Detta är en avhandling från Stockholm : Bokförlaget Atlas

    Författare :Anna Friberg; Mittuniversitetet.; [2013]
    Nyckelord :HUMANIORA; HUMANITIES; collective singulars; composite concepts; conceptual history; cultural democracy; democracy; economic democracy; historical time; history; industrial democracy; ineliminable features; Interwar years; labor history; labor movement; Michael Freeden; political democracy; political history; political parties; Reinhart Koselleck; Social Democracy; Swedish history; temporalization of concepts; arbetarhistoria; arbetarrörelsen; begreppshistoria; demokrati; ekonomisk demokrati; historia; historisk tid; kollektivsingular; kulturell demokrati; mellankrigstiden; Michael Freeden; nyckelkomponenter; politisk demokrati; politiska partier; Reinhart Koselleck; sammansatta begrepp; social demokrati; socialdemokrati; svensk historia; temporalisering; collective singulars; composite concepts; conceptual history; cultural democracy; democracy; economic democracy; historical time; history; industrial democracy; ineliminable features; Interwar years; labor history; labor movement; Michael Freeden; political democracy; political history; political parties; Reinhart Koselleck; Social Democracy; Swedish history; temporalization of concepts; arbetarhistoria; arbetarrörelsen; begreppshistoria; demokrati; ekonomisk demokrati; historia; historisk tid; kollektivsingular; kulturell demokrati; mellankrigstiden; Michael Freeden; nyckelkomponenter; politisk demokrati; politiska partier; Reinhart Koselleck; sammansatta begrepp; social demokrati; socialdemokrati; svensk historia; temporalisering;

    Sammanfattning : This dissertation analyzes the concept of democracy as it was used in the official rhetoric of the Swedish SocialDemocratic Party (SAP?) between 1919 and 1939. Theoretically, the dissertation relies on German Begriffsgeschichte, as put forward by Reinhart Koselleck, and Michael Freeden’s theory of ideologies. LÄS MER

  4. 4. On Surface Characteristics and Microstructural Development of Soft Magnetic Composite Powder and Components

    Detta är en avhandling från Stockholm : Bokförlaget Atlas

    Författare :Christos Oikonomou; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; X-ray photoelectron spectroscopy; compaction; annealing; X-ray diffraction; soft magnetic composites; high resolution scanning electron microscopy; surface layers; magnetic testing; powder metallurgy; depth profiling; electron backscatter diffraction; focused ion beam; thickness determination; energy dispersive X-ray spectroscopy; microstructure;

    Sammanfattning : Soft Magnetic Composite (SMC) products manufactured by traditional Powder Metallurgical (PM) techniques, are strong candidate materials for electromagnetic applications. Their advantages are based on cost and energy efficient production methods, shape complexity realization and uniquely uniform and isotropic three dimensional (3D) magnetic properties. LÄS MER

  5. 5. Fracture mechanics analysis of damage initiation and evolution in fiber reinforced composites

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Andrejs Pupurs; Luleå tekniska universitet.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Sammanfattning : When a unidirectional (UD) fiber reinforced polymer composite is loaded in fiber direction in quasi-static or in a high stress cyclic tension-tension regime, many fiber breaks may occur in random positions already during the load increase in the first cycle. This is because fiber strain to failure in UD composites is lower than the polymer matrix strain to failure. LÄS MER