Efficient implementation of an explicit partitioned shear and longitudinal wave propagation algorithm

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F16%3A00461611" target="_blank" >RIV/61388998:_____/16:00461611 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/nme.5174" target="_blank" >http://dx.doi.org/10.1002/nme.5174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/nme.5174" target="_blank" >10.1002/nme.5174</a>

Result language

angličtina

Original language name

Efficient implementation of an explicit partitioned shear and longitudinal wave propagation algorithm

Original language description

The paper complements and extends the previous works on partitioned explicit wave propagation analysis methods, which were presented for discontinuous wave propagation problems in solids. An efficient implementation of the partitioned explicit wave propagation analysis methods is introduced. The present implementation achieves about 25% overall computational effort compared with the previous implementation with the same accuracy. The present algorithm tracks, with different integration time step sizes in accordance with their different wave speeds, the propagation fronts of longitudinal and shear waves. This is accomplished by integrating separately the element-by-element partitioned longitud inal and shear equations of motion. The state vectors (displacements, velocity and accelerations) of the longitudinal and shear components are reconciled at the end of each time step. The econciliation procedure does not require any system parameters such as material properties, density, unlike conventional artificial viscosity methods. Numerical examples are presented as applied to linear and non-linear wave propagation problems, which demonstrate high-fidelity wavefront tracking ability of the present method, and compared with existing conventional wave propagation analysis methods.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BI - Acoustics and oscillation

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

International Journal for Numerical Methods in Engineering

ISSN

0029-5981

e-ISSN

—

Volume of the periodical

107

Issue of the periodical within the volume

7

Country of publishing house

GB - UNITED KINGDOM

Number of pages

37

Pages from-to

543-579

UT code for WoS article

000380035000001

EID of the result in the Scopus database

2-s2.0-84950335858