Search for dissertations about: "imperfection"

Showing result 1 - 5 of 26 swedish dissertations containing the word imperfection.

  2. 1. Wrinkling of sandwich panels for marine applications

    Author : Linus Fagerberg; KTH; []
    Keywords : wrinkling; local buckling; imperfection; stability; anisotropy; sandwich;

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

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

    Author : Mats Ander; Chalmers tekniska högskola; []
    Keywords : 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;

    Abstract : 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. READ MORE

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

    Author : Mats Ander; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE