000022793 001__ 22793
000022793 005__ 20220110134527.0
000022793 04107 $$aeng
000022793 046__ $$k2018-05-14
000022793 100__ $$aKruisová, A.
000022793 24500 $$aFinite element modeling of the signal propagation in a thin tube and comparison with experimental data

000022793 24630 $$n24.$$pEngineering Mechanics 2018
000022793 260__ $$bInstitute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague
000022793 506__ $$arestricted
000022793 520__ $$2eng$$aIn 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.

000022793 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022793 653__ $$awave propagation, finite element method, dispersion errors

000022793 7112_ $$aEngineering Mechanics 2018$$cSvratka, CZ$$d2018-05-14 / 2018-05-17$$gEM2018
000022793 720__ $$aKruisová, A.$$iKolman, R.$$iTrnka, J.$$iMračko, M.
000022793 8560_ $$ffischerc@itam.cas.cz
000022793 8564_ $$s494374$$uhttps://invenio.itam.cas.cz/record/22793/files/441.pdf$$yOriginal version of the author's contribution in proceedings, page , section DYN.
000022793 962__ $$r21225
000022793 980__ $$aPAPER