Sökning: "Finite-element simulation"

Visar resultat 16 - 20 av 427 avhandlingar innehållade orden Finite-element simulation.

  1. 16. Finite Element Methods for Thin Structures with Applications in Solid Mechanics

    Författare :Karl Larsson; Mats G Larson; Garth N Wells; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; a priori error estimation; finite element method; discontinuous Galerkin; corotation; Kirchhoff-Love plate; curved beam; biharmonic equation; Mathematics; matematik;

    Sammanfattning : Thin and slender structures are widely occurring both in nature and in human creations. Clever geometries of thin structures can produce strong constructions while requiring a minimal amount of material. LÄS MER

  3. 17. Efficient finite element modelling and simulation of welding

    Författare :Henrik Runnemalm; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Sammanfattning : This thesis presents development of methods, methodologies and tools for efficient finite element modelling and simulation of welding. A novel 8- to 16-noded solid shell element has been developed. It uses only displacement degrees of freedom, thus it can easily be connected with a regular brick element. LÄS MER

  4. 18. Finite element simulation of flow in granular materials

    Författare :Tomas Karlsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : .... LÄS MER

  5. 19. Duality-based adaptive finite element methods with application to time-dependent problems

    Författare :August Johansson; Mats G. Larson; Paul Houston; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; finite element methods; dual-weighted residual method; multiphysics; a posteriori error estimation; adaptive algorithms; discontinuous Galerkin; MATHEMATICS; MATEMATIK; Mathematics; matematik;

    Sammanfattning : To simulate real world problems modeled by differential equations, it is often not sufficient to  consider and tackle a single equation. Rather, complex phenomena are modeled by several partial dierential equations that are coupled to each other. LÄS MER

  7. 20. Reanalysis of primate head impact experiments to clarify mild traumatic brain injury kinematics and thresholds

    Författare :Jacobo Antona; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation; Brain; finite element; injury criteria;

    Sammanfattning : Fatalities and severe injuries due to road traffic accidents still represent a serious health and economic issue intoday’s society. Brain injuries are the most common severe injuries and these injuries account for more than half ofthe 1.3 million traffic related deaths annually worldwide. LÄS MER