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Elastic wave propagation in periodical one-dimensional problems: Accurate finite element modelling
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SYSNO ASEP 0518611 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Elastic wave propagation in periodical one-dimensional problems: Accurate finite element modelling Author(s) Kolman, Radek (UT-L) RID
Cho, S.S. (KR)
Park, K.C. (US)
Berezovski, A. (EE)
González, J. A. (ES)
Adámek, V. (CZ)
Hora, Petr (UT-L) RID, ORCIDNumber of authors 7 Source Title GACM Colloquium on Computational Mechanics For Young Scientists From Academia and Industry. - Kassel, Germany : University of Kassel, Germany, 2019 / Gleim T. ; Lange S. - ISBN 978-3-7376-5093-9 Pages s. 23-25 Number of pages 3 s. Publication form Online - E Action GACM Colloquium on Computational Mechanics For Young Scientists From Academia and Industry /8./ Event date 28.08.2019 - 30.08.2019 VEvent location University of Kassel Country DE - Germany Event type WRD Language eng - English Country DE - Germany Keywords wave propagation ; finite element method ; spurious oscillations Subject RIV BI - Acoustics OECD category Applied mechanics R&D Projects GA19-04956S GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) EF15_003/0000493 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UT-L - RVO:61388998 Annotation In this contribution, we present results of novel explicit finite element approach for accurate modelling of elastic wave propagation in periodical one-dimensional layered bars. Standard approaches in explicit time integration of the finite element discretized system produce dominant spurious oscillations of stress distributions. By meaning of the local stepping process, the stress spurious oscillations are eliminated and the time scheme is suitable for accurate modelling of elastic wave propagation in heterogeneous media using the finite element method. The presented time scheme is tested in elastic wave propagation in a layered bar with two different materials. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2020
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