An adaptive finite element technique for thermal stress analysis of built-up structures has been developed. A finite element formulation for a triangular membrane element and a new plate bending element, used for modelling such structures under both mechanical and thermal loadings, is presented. The associated finite element matrices have been derived in closed form. The performance of the new plate bending element is evaluated for a plate with temperature gradient through its thickness by comparing the predicted solution with the exact solution. The effectiveness of the adaptive meshing technique combined with the finite element method is evaluated by thermal stress analysis of a built-up structure with intersecting panels. The application demonstrates that the adaptive meshing technique can provide an accurate solution with fewer elements and shorter computational time than the standard finite element procedure.


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    Title :

    Adaptive finite element technique for thermal stress analysis of built-up structures


    Additional title:

    Angepaßte Finite-Elemente-Technik für thermische Spannungsanalysen von Aufbaustrukturen


    Contributors:


    Publication date :

    1996


    Size :

    8 Seiten, 9 Bilder, 6 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English







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