Sökning: "buckling"

Visar resultat 1 - 5 av 104 uppsatser innehållade ordet buckling.

  1. 1. Buckling of End-Bearing Retaining Walls in Clay

    Master-uppsats, KTH/Jord- och bergmekanik; KTH/Jord- och bergmekanik

    Författare :Fredrik Jansson; Nils Nilsson; [2018]
    Nyckelord :Berliner walls; Critical loads; buckling; finite element model; Eurocode 3; Berlinerspont; Rörspont; kritisk knäckningslast; knäckning; finit element modell; Eurocode 3;

    Sammanfattning : The design of back-anchored retaining walls in Sweden has traditionally not included global elastic instability of the retaining wall as a possible failure mode. Eurocode 3 part 5 (SS-EN 1993-5) requires design of steel structural members for retaining walls to assess the risk of buckling if the normal force exceeds 4 % of the critical buckling load of the retaining wall. LÄS MER

  2. 2. Analytical calculation model used when dimensioning timber poles used as overhead power line supports

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Christopher Ekängen; [2018]
    Nyckelord :Calculation model; timber poles; overhead power line;

    Sammanfattning : Overhead power lines are more reliable and cost effective than underground cables when it comes to power transmission. The overhead power lines are often suspended above ground using timber pole supports. LÄS MER

  3. 3. Wrinkling in packaging material: Experiments and thermo-mechanical stochastic modeling

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära

    Författare :Linus Dahlström; David Johansson; [2018]
    Nyckelord :Stochastic; modeling; XCT; thermo-mechanical; Technology and Engineering;

    Sammanfattning : As one of the world leaders in food packaging, it is in the interest of Tetra Pak⃝R to increase the understanding of packaging material and how it can better be virtually modeled, using finite element (FE) simulations. The aim of this thesis is to evaluate whether a stochastic approach can be taken to generate a more realistic response than a purely deterministic one, in the aforementioned models. LÄS MER

  4. 4. Tank Shell Design According to Eurocodes and Evaluation of Calculation Methods

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Malin Pluto; [2018]
    Nyckelord :Tank; Eurocode; Membrane theory; Linear elastic shell analysis; Finite element method;

    Sammanfattning : Tanks are storage vessels for liquids. They can have different appearances; some are short and wide, others are tall and slim, some are small, others are large. In this thesis a tank of 6 m in both diameter and height has been used to obtain numerical results of the stresses in the tank. LÄS MER

  5. 5. Initial bow imperfection for flexural buckling of steel members - Verification and optimisation regarding analysis of columns and beam-columns

    H-uppsats, Chalmers tekniska högskola/Institutionen för arkitektur och samhällsbyggnadsteknik

    Författare :Angelica Henriksson; Josefin Panarelli; [2017]
    Nyckelord :steel; instability; buckling; initialbow imperfection; second order buckling analysis; interaction; column; beam-column; Eurocode;

    Sammanfattning : .... LÄS MER

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