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Visar resultat 1 - 5 av 17 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Numerical simulation of plastic localization

    Författare :Ragnar Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-associated plastic flow; non-uniqueness; bifurcation; remeshing; strain-softening; adaptivity; Plasticity;

    Sammanfattning : .... LÄS MER

  3. 2. Numerical models of ductile crack growth

    Författare :Annika Trädegård; KTH; []
    Nyckelord :solid mechanics; nonlinear fracture mechanics; elastic-plastic fracture; finite element method; remeshing; constraint; two-parameter characterisation; stable ductile crack growth; cleavage; weibull stress; void growth;

    Sammanfattning : .... LÄS MER

  4. 3. Smoothing and adaptive remeshing schemes for graded element

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

    Sammanfattning : The objective of the present work is to develop mesh smoothing and adaptive remeshing schemes to improve the Finite Element Analysis. Smoothing and adaptive remeshing techniques are studied for graded element. Different smoothing techniques are implemented and shown. LÄS MER

  5. 4. Adaptive remeshing and simulating a chain of manufacturing process

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

    Sammanfattning : Simulations of manufacturing process do in general need adaptive meshing techniques. These can not only make it possible to obtain the solution more efficient but they can also be necessary to enable a solution to be obtained at all. The latter is the case for processes like forging where very large deformations occur. LÄS MER

  7. 5. Simulation of mechanical cutting

    Författare :Vahid Kalhori; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Sammanfattning : This thesis deals with simulation of mechanical cutting. It focuses on orthogonal cutting. Thus it is possible to use two-dimensional models. The strong thermo-mechanical coupling must be accounted for in the model. LÄS MER