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Asynchronously in time integrated interface dynamics problem while maintaining zero interface energy
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SYSNO ASEP 0579987 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Asynchronously in time integrated interface dynamics problem while maintaining zero interface energy Author(s) Dvořák, Radim (UT-L)
Kolman, Radek (UT-L) RID
Jiroušek, O. (CZ)
Gonzáles, J.A. (ES)
Park, K.C. (US)Number of authors 5 Source Title 9th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering : COMPDYN 2023, 1. - Atény : Institute of Structural Analysis and Antiseismic, Research School of Civil Engineering, National Technical University of Athens (NTUA), 2023 / Papadrakakis M. ; Fragiadakis M. - ISBN 978-618-85072-9-6 Pages s. 1-18 Number of pages 18 s. Publication form Online - E Action COMPDYN 2023 International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering /9./ Event date 12.06.2023 - 14.06.2023 VEvent location Atény Country GR - Greece Event type WRD Language eng - English Country GR - Greece Keywords finite element method ; direct time integration ; domain decomposition OECD category Applied mechanics R&D Projects GF22-00863K GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 EID SCOPUS 85175839742 Annotation The problem of the linear elastodynamics including domain decomposition via localized Lagrange multipliers method is solved using finite element method and direct time integration. The time integration of the subdomains is performed separately with different time steps with arbitrary ratio. The asynchronous integrator scheme is generalized for multiple subdomain problem with any number of constraints between them. The exact continuity of the displacement, velocity, and acceleration fields at the interface is satisfied. The proposed method
is applied to the rectangular step pulse propagation problem considering the linearly varying Young modulus in space as well as the bi-material interface problem. To prove the robustness
and the accuracy, the comparison with analytical solution and conventional codes output is provided.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 2024 Electronic address https://2023.compdyn.org/proceedings/pdf/20510.pdf
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