Waves in Inhomogeneous Solids

Arkadi Berezovski (), Mihhail Berezovski and Jüri Engelbrecht
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Arkadi Berezovski: Institute of Cybernetics at Tallinn University of Technology, Centre for Nonlinear Studies
Mihhail Berezovski: Institute of Cybernetics at Tallinn University of Technology, Centre for Nonlinear Studies
Jüri Engelbrecht: Institute of Cybernetics at Tallinn University of Technology, Centre for Nonlinear Studies

A chapter in Applied Wave Mathematics, 2009, pp 55-81 from Springer

Abstract: Abstract The paper aims at presenting a numerical technique used in simulating the propagation of waves in inhomogeneous elastic solids. The basic governing equations are solved by means of a finite-volume scheme that is faithful, accurate, and conservative. Furthermore, this scheme is compatible with thermodynamics through the identification of the notions of numerical fluxes (a notion from numerics) and of excess quantities (a notion from irreversible thermodynamics). A selection of one-dimensional wave propagation problems is presented, the simulation of which exploits the designed numerical scheme. This selection of exemplary problems includes (i) waves in periodic media for weakly nonlinear waves with a typical formation of a wave train, (ii) linear waves in laminates with the competition of different length scales, (iii) nonlinear waves in laminates under an impact loading with a comparison with available experimental data, and (iv) waves in functionally graded materials.

Keywords: Pulse Shape; Riemann Problem; Computational Cell; Jump Relation; Thermoelastic Wave (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-00585-5_5

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DOI: 10.1007/978-3-642-00585-5_5

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