An explicit local time stepping for modelling of wave propagation in heterogeneous bars

Result code in IS VaVaI
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Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
An explicit local time stepping for modelling of wave propagation in heterogeneous bars
Original language description
We present an explicit local time stepping for accurate finite element modelling of elastic wave propagation in heterogeneous bars. The main trouble of classical explicit time integrationnbased on the central difference in time with combination with the spatial discretization by finite element method is existence of numerical stress spurious oscillations and sensitivity of resultsnon chosen time step size. The nominated time scheme is based on local time stepping with local time step size for each finite element and pullback interpolation of local displacements on thenglobal level. The scheme is explicit and of second order. In this contribution, we shown the results for wave propagation in heterogeneous bars as layered and graded bars.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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