Propagation of non-stationary waves in viscoelastic strip composed of orthotropic layers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00483794" target="_blank" >RIV/61388998:_____/17:00483794 - isvavai.cz</a>

Alternative codes found

RIV/49777513:23520/17:43949548

Result on the web

<a href="https://2017.compdyn.org/" target="_blank" >https://2017.compdyn.org/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Propagation of non-stationary waves in viscoelastic strip composed of orthotropic layers

Original language description

The analytical solution for transient waves caused by transverse impact on an infinite layered strip with free-free boundaries is presented in this work. The strip is composed of two horizontal layers of different heights. The materials of both layers are assumed to be linear viscoelastic and orthotropic. The case of special orthotropy is assumed for simplicity. The dissipative behaviour of each layer is modelled by the discrete model of standard linear viscoelastic solid in Zener configuration. The solving procedure used in this work follows the methods applied in previously published works dealing with the problems of a viscoelastic orthotropic strip and the symmetric case of a layered strip. The system of four linear partial integro-differential equations describing the non-stationary state of plane stress in the strip is solved by means of integral transform method. Concretely, the Laplace transform in time domain and the Fourier transform in spatial domain are applied. As a results of this procedure, the final formulas for displacement components in both layers are derived in Laplace domain. These transforms contain eight spectra of Fourier integrals which can be found as the solution of the system of eight complex equations arising from boundary conditions of the problem. When the spectra are known, the resulting formulas for the Laplace transforms of displacement components are obtained.nThe presented new formulation of non-symmetric problem enables to study the wave phenomena in general two-layered solids of strip-like geometry and it is fundamental for solving a problem with arbitrary number of layers.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20302 - Applied mechanics

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

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

COMPDYN 2017. 6th International conference on computational methods in structural dynamics and earthquake engineering. Proceedings

ISBN

978-618-82844-1-8

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

1322-1329

Publisher name

National Technical University of Athens

Place of publication

Athens

Event location

Rhodes

Event date

Jun 15, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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