Original title: Component-wise partitioned finite element method in linear wave propagation problems: benchmark tests
Authors: Kolman, Radek ; Cho, S.S. ; Červ, Jan ; Park, K.C.
Document type: Papers
Conference/Event: DYMAMESI 2014, Praha (CZ), 2014-11-25 / 2014-11-26
Year: 2014
Language: eng
Abstract: A novel explicit time scheme for nite element computations of wave propagation problems in solids is presented. The presented algorithm, with the component-wise partition of equations of motion to the longitudinal and shear parts, is designed to more precisely integrate wave propagation in accordance with their dierent propagation wave speeds. The suggested three-time step integrator is fully explicit with the diagonal mass matrix, of second-order accuracy, conditionally stable and it exhibits minimal sensitivity behavior on time step size satisfying the stability limit. We present two numerical tests of wave propagation phenomena to show accuracy and performance of the proposed method.
Keywords: explicit time integrator; finite element method; spurious oscillations; stress discontinuities; stress wave propagation
Project no.: GAP101/11/0288 (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2014 : Dynamics of machines and mechanical systems with interactions, ISBN 978-80-87012-54-3

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0242424

Permalink: http://www.nusl.cz/ntk/nusl-180469


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