Sökning: "Visco-plasticity"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet Visco-plasticity.

  1. 1. Goal-Oriented Adaptive Finite Element Analysis in Computational Material Mechanics

    Författare :Fredrik Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; visco-plasticity; a posteriori error estimation; thermo-elasticity; mesh refinement; adaptivity; FEM; elasticity;

    Sammanfattning : This thesis is concerned with error control in computational material mechanics. A posteriori error estimation and adaptivity for finite element discretizations is investigated. Based on the technique of solving a dual problem, it is possible to control the accuracy of arbitrary quantities. LÄS MER

  3. 2. Goal-oriented error measures and adaptive finite element procedures in solid mechanics

    Författare :Fredrik Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hyper-elasticity; A posteriori error estimation; Thermo-elasticity; Adaptivity; FEM; Visco-plasticity;

    Sammanfattning : .... LÄS MER

  4. 3. Simulation of track settlement in railway turnouts-An iterative approach

    Författare :Xin Li; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; track settlement; Railway switch and crossing; cyclic loading; visco-plasticity; vehicle‒track interaction; 3D finite element analysis; granular material; ballast;

    Sammanfattning : In this thesis, a methodology for simulation of track settlement in railway turnouts (switches andcrossings, S&C) is presented. The methodology predicts the accumulated settlement for a given setof traffic loads using an iterative and cross-disciplinary procedure. LÄS MER

  5. 4. Impact loading on concrete structures : a constitutive modelling, finite element analysis, and experimental study of nonlinear wave propagation

    Författare :Larsgunnar Nilsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; experimental study; numerical procedures; plasticity; Nonlinear wave propagation; reinforced concrete; brittle failure; contact-impact; visco plasticity;

    Sammanfattning : .... LÄS MER

  7. 5. Nonlinear micromechanics of open-cell cellular solids

    Författare :Per Hård af Segerstad; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FEM; Finite strains; Foams; Micropolar theory; Constitutive modelling;

    Sammanfattning : An approach for modelling the response of open-cell cellular solids at finite strainsis developed. The model framework comprises a mechanistic formulation wherethe cellular solid is considered as a network of struts, each connecting two vertexpoints. LÄS MER