Sökning: "Mises"

Visar resultat 6 - 10 av 27 avhandlingar innehållade ordet Mises.

  1. 6. Experimental and numerical analysis of scratching of homogeneous materials

    Författare :Fredrik Wredenberg; Per-Lennart Larsson; Sture Hogmark; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : Paper AAbstractA numerical strategy based on the finite element method and intended for an accurate analysis of the scratch test is presented. For simplicity, but not out of necessity,the material was described by classical Mises elastoplasticity utilising large deformation theory. LÄS MER

  3. 7. Co-rotational beam elements in instability problems

    Författare :Jean-Marc Battini; KTH; []
    Nyckelord :instability; co-rotational mehtod; branch-switching; beam element; warping; plastic buckling. post-bifurcation; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : The purpose of the work presented in this thesis is to implement co-rotational beam elements and branch-switching procedures in order to analyse elastic and elastoplasticinstability problems. For the 2D beam elements, the co-rotational framework is taken from Crisfield [23]. LÄS MER

  4. 8. Load-Carrying Capacity of Steel Girders and Panels with Thin-Walled Trapezoidally Corrugated Webs

    Författare :Ruoshan Luo; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steel; finite element; thin-walled structures; girder; post-buckling; panel; trapezoidal corrugation; load-carrying capacity; optimal design; plasticity; spline finite strip; buckling; large deflection;

    Sammanfattning : This thesis concerns the load-carrying capacity of steel girders and panels with thin-walled trapezoidally corrugated webs. Computer-based numerical methods are used as a tool and emphasis is placed on various parametric studies, covering geometric parameters, initial imperfections, material strain-hardening models, loading types and loading positions, and so forth. LÄS MER

  5. 9. Att bygga mening och rum - om processer för utveckling av verksamhetsmiljöer

    Författare :Lisbeth Birgersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; local economic development; local authority planning; action orientated processes; environments for small enterprise; social space; participation; design theory; workplace environments; revitalising redundant buildings; civic processes;

    Sammanfattning : This study sets out to re-evaluate the experience gained from two local authority schemes for revitalising industrial pre-mises for the needs of small enterprise. Common to these schemes was the ambition that any renewal or regeneration was to be carried out on the terms of the firms concerned. LÄS MER

  7. 10. Computational Nonsmooth Mechanics

    Författare :Peter W. Christensen; J.A.C. Martins; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis concerns the application of modern methods from the field of mathematical programming for solving certain problems of nonsmooth mechanics. Attention is given to contact problems with friction as well as plasticity problems. LÄS MER