Počet záznamů: 1  

Finite element modeling of the signal propagation in a thin tube and comparison with experimental data

  1. 1.
    0491020 - ÚT 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
    Kruisová, Alena - Kolman, Radek - Trnka, Jan - Mračko, Michal
    Finite element modeling of the signal propagation in a thin tube and comparison with experimental data.
    Engineering mechanics 2018. Book of full texts. Prague: Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2018 - (Fischer, C.; Náprstek, J.), s. 441-444. ISBN 978-80-86246-88-8. ISSN 1805-8248.
    [Engineering mechanics 2018 /24./. Svratka (CZ), 14.05.2018-17.05.2018]
    Grant CEP: GA MŠMT(CZ) EF15_003/0000493; GA ČR(CZ) GA17-22615S
    Institucionální podpora: RVO:61388998
    Klíčová slova: wave propagation * finite element method * dispersion errors
    Obor OECD: Applied mechanics

    In finite element modeling of wave propagation problems, both the spatial and temporal discretization lead to dispersion errors. It means that the phase velocity of propagated wave is related to its frequency. In framework of temporal-spatial dispersion analysis, the time step size for implicit time integration method based on the Newmark method is proposed for linear and quadratic serendipity plane finite elements. In this paper, we verify the theoretical dispersion analysis by elastic wave propagation in thin tube, where experimental results are known. Such time step size was used in finite element modeling of the stress wave propagating in this thin steel tube, the results of simulations were compared with experimental results.
    Trvalý link: http://hdl.handle.net/11104/0290054

     
     
Počet záznamů: 1  

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