Search for dissertations about: "FEM"

Showing result 1 - 5 of 881 swedish dissertations containing the word FEM.

  1. 1. Closed-die forging and slab hot rolling with focus on material yield some industrial problems analysed by FEM

    University dissertation from Stockholm : KTH

    Author : Esa Ervasti; Ulf Ståhlberg; Hans Keife; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material yield; Closed-die forging; Hot rolling; Cracks; Macro-inclusions; Steel; FEM; TECHNOLOGY Industrial engineering and economy; TEKNIKVETENSKAP Industriell teknik och ekonomi;

    Abstract : The thesis is focussed on improving the material yield in closed-die forging and rolling. The former is restricted to the manufacturing of heavy crown wheels and front axle beams and the latter to the hot rolling of steel slabs. To enhance the yield the commercial FE-codes Form2D and Dyna3D are used. READ MORE

  2. 2. Variation Simulation Customized for Composites by Including FEM Simulations of Orthotropic Lamina

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Cornelia Jareteg; Göteborgs universitet.; Gothenburg University.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry assurance; FEM; Composites; Shell model; Process variation; Method of Influence Coefficients; Monte Carlo; Orthotropic material; Manufacturing; Tolerance analysis; Variation simulation; Spring-in; Tolerance analysis; Monte Carlo; Manufacturing; Composites; Shell model; Process variation; Spring-in; Orthotropic material; Method of Influence Coefficients; Variation simulation; FEM;

    Abstract : The use of composite materials is increasing in many fields of production. Composite manufacturing, as well as other fields of production, suffers from uncertainties resulting in products that deviate from the specification. Geometry assurance is a common procedure used to keep the variations in product assemblies under control. READ MORE

  3. 3. Adaptive structural design - Integration of computational tools for CAD, adaptive FEM and optimization

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Per Kettil; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adaptive; structural mechanics; optimization; integration; FEM; CAD; design;

    Abstract : BackgroundConstruction is one of the largest industries with major impact on economy, environment and society. Improved structural design is important since the decisions made during the design process strongly influence all later stages, i.e. READ MORE

  4. 4. Computational Engineering Development and Implementation of Computational Methods for Structural Analysis and Design

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Per Kettil; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CAD; simulation; FEM; optimisation; integration; modelling; object-oriented;

    Abstract : 'Computational engineering' (CE) is computation based on mathematical models for use in engineering design. CE can be used to study and optimise structures and processes in industry and other branches of society to utilise resources in the most effective way. Modelling, simulation, optimisation and visualisation are basic methods of CE. READ MORE

  5. 5. The interdependence of plastic behaviour and final properties of steel wire, analysed by the finite element method

    University dissertation from Örebro : Örebro universitetsbibliotek

    Author : Henrik Överstam; Magnus Jarl; Sven-Erik Lundberg; Chunhui Luo; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Technology; FEM; defects; steel wire; wire drawing; rolling; forging; Teknikvetenskap; TECHNOLOGY; TEKNIKVETENSKAP; Maskinteknik; Mechanical Engineering;

    Abstract : The finite element method (FEM) has been used in order to study the interdependence of plastic behaviour and final properties in steel wire. Three processes metal forming have been studied: billet forging, wire rod rolling, and cold drawing. READ MORE