Sökning: "imperfection"

Visar resultat 1 - 5 av 28 avhandlingar innehållade ordet imperfection.

  1. 1. Wrinkling of sandwich panels for marine applications

    Författare :Linus Fagerberg; KTH; []
    Nyckelord :wrinkling; local buckling; imperfection; stability; anisotropy; sandwich;

    Sammanfattning : The recent development in the marine industry with largerships built in sandwich construction and also the use of moreadvanced materials has enforced improvements of design criteriaregarding wrinkling. The commonly used Hoff’s formula isnot suited for the highly anisotropic fibre reinforced sandwichface sheets of today. LÄS MER

  3. 2. Making Preciousness : Interaction Design Through Studio Crafts

    Författare :Vasiliki Tsaknaki; Ylva Fernaeus; Ron Wakkary; KTH; []
    Nyckelord :Interaction design; materials; making preciousness; studio crafts; resourceful composition; material sensuality; mattering artefacts; impermanence; incompleteness; imperfection; Human-computer Interaction; Människa-datorinteraktion;

    Sammanfattning : This dissertation explores value-creation in interaction design through practical collaborations with studio craftspersons. A focus is on the meaning of “preciousness” from a design perspective – what I refer to as Making Preciousness –  which highlights aspects of material properties, design processes, and the attitude to the design space. LÄS MER

  4. 3. Experimental Study on Cold Lap Formation in Tandem Gas Metal Arc Welding

    Författare :Peigang Li; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oxides; imperfection; spatter; silicon; lack of fusion; overflow; temperature energy; overlap; cold lap; manganese; tandem GMAW;

    Sammanfattning : Tandem gas metal arc welding (GMAW) is a high productivity welding process which is appliedin many industries. However, a type of imperfection, known as cold lap, was revealed thatmostly accompanies the tandem GMAW process. LÄS MER

  5. 4. On Postbuckling Analysis of Thin-walled Structures Numerical and Statistical Approaches

    Författare :Mats Ander; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; postbuckling; hierarchical elements; imperfection sensitivity; displacement gradients; total Lagrange formulation; geometrically non-linear structures;

    Sammanfattning : Thin-walled structural elements, such as plates, shells and beams are important load carrying components in civil-, mechanical-, automotive- aeronautical- and marine engineering structures. In order to reduce the weight thin-walled structures are given an optimum design making them sensitive to unforeseen deviations in geometry, boundary conditions, material properties and applied loads. LÄS MER

  7. 5. Studies on problems related to buckling of imperfection sensitive structures

    Författare :Mats Ander; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER