Energy-conserving interface dynamics with asynchronous direct time integration employing arbitrary time steps

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dc.contributor.authorDvořák, Radim
dc.contributor.authorKolman, Radek
dc.contributor.authorMračko, Michal
dc.contributor.authorKopačka, Ján
dc.contributor.authorFíla, Tomáš
dc.contributor.authorJiroušek, Ondřej
dc.contributor.authorFalta, Jan
dc.contributor.authorNeuhäuserová, Michaela
dc.contributor.authorRada, Václav
dc.contributor.authorAdámek, Vítězslav
dc.contributor.authorGonzáles, José A.
dc.date.accessioned2023-09-04T10:00:20Z
dc.date.available2023-09-04T10:00:20Z
dc.date.issued2023
dc.description.abstract-translatedThe derivation and implementation of an asynchronous direct time integration scheme for domain-decomposed finite element models is presented. To maximize clarity in the description of the proposed asynchronous integration, the scheme is restricted to the linear-elastic stress wave propagation case. The proposed method allows the integration of individual subdomains with independent time steps. There is no requirement for an integer time steps ratio of the interacting domains while maintaining zero interface energy. The subdomains are connected by the condition of the continuity of the acceleration field at the interface. In addition, the a posteriori technique is applied to satisfy the continuity of the displacement and velocity fields. Another important contribution of this paper lies in the description of the implementation - we offer the reader a general description of the implementation of the case of any number of subdomains with any number of constraints between them, while the basics of the algorithm are explained on a single domain pair. The functionality of the asynchronous integrator is verified by solving selected problems and comparing with analytical solutions and experimental measurements obtained using a Split Hopkinson pressure bar setup.en
dc.format
dc.format26 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationDVOŘÁK, R. KOLMAN, R. MRAČKO, M. KOPAČKA, J. FÍLA, T. JIROUŠEK, O. FALTA, J. NEUHÄUSEROVÁ, M. RADA, V. ADÁMEK, V. GONZÁLES, JA. Energy-conserving interface dynamics with asynchronous direct time integration employing arbitrary time steps. Computer Methods in Applied Mechanics and Engineering, 2023, roč. 413, č. August, s. nestránkováno. ISSN: 0045-7825cs
dc.identifier.document-number1013421300001
dc.identifier.doi10.1016/j.cma.2023.116110
dc.identifier.issn0045-7825
dc.identifier.obd43939629
dc.identifier.uri2-s2.0-85160519557
dc.identifier.urihttp://hdl.handle.net/11025/53881
dc.language.iso
dc.language.isoenen
dc.project.IDGF22-00863K/Řiditelné metamateriály a chytré struktury: Nelineární problémy, modelování a experimentycs
dc.publisherElsevieren
dc.relation.ispartofseriesComputer Methods in Applied Mechanics and Engineeringen
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelůmcs
dc.rights© Elsevieren
dc.rights.accessrestrictedAccessen
dc.subject.translatedfinite element methoden
dc.subject.translateddirect time integrationen
dc.subject.translateddomain decompositionen
dc.subject.translatedlocalized Lagrange multipliersen
dc.subject.translatedasynchronous integratoren
dc.subject.translatedmulti time stepen
dc.titleEnergy-conserving interface dynamics with asynchronous direct time integration employing arbitrary time stepsen
dc.typečlánekcs
dc.typearticleen
dc.type.status
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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