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Helical buckling of thin rods: FE modelling

Abstract:

In this paper, we utilize the Finite Element (FE) method to model twisting of long thin rods and capture the bifurcation scenarios leading to heli-cal buckling and various further post-buckling states. Since standard nonlinear beam elements do not account for nonlinearity in torsional mode, we derive a modified beam element, which allows to model complex torsional buckling bifurcation scenarios of a thin rod subjected to twisting load. A series of verification tests (static analysis with load stepping) of the developed code are per-formed to determine critical torsional buckling loads for various helical buck-ling modes and compared with ABAQUS FE simulation.

Año de publicación:

2018

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Conference Object

    Estado:

    Acceso abierto

    Áreas de conocimiento:

    • Método de elementos finitos
    • Ingeniería mecánica
    • Ingeniería mecánica

    Áreas temáticas:

    • Física aplicada
    • Ingeniería y operaciones afines
    • Otras ramas de la ingeniería

    Contribuidores:

    Kapitaniak M.Kapitaniak M.
    Marian WiercigrochMarian Wiercigroch
    Vaziri V.Vaziri V.