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$EVWUDFW In this study, we propose and implement a convergence scheme for the numerical wavenumber integration in the context of 2.5D FE solution and validate it through a numerical example. In brief, the scheme is to estimate the convergence based on the relative difference between two interpolations for a given set of wavenumbers, which is done iteratively by refining the wavenumber sampling until the relative difference becomes no greater than a specified value. We evaluate the performance and convergence of the numerical integration scheme by comparing the results of the responses of a tunnel in a layered ground due to a concentrated harmonic load using both a full 3D model and a 2.5D model, including computational time aspect. Finally, we consider applying the same scheme to other relevant numerical integrations.
EURODYN 2020 XI International Conference on Structural Dynamics M. Papadrakakis, M. Fragiadakis, C. Papadimitriou (eds.) Athens, Greece, 23–26 November 2020
ISSN:2311-9020 © 2020 The Authors. Published by EASD Procedia.
Peer-review under responsibility of the Organizing Committee of EURODYN 2020.
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