Obiekt

Tytuł: Phase velocity and attenuation of longitudinal shear vibrations of hollow poroelastic cylinders

Autor:

Shah, Ahmed S. ; Javvad Hussaini, S.

Data wydania:

2014

Typ zasobu:

artykuł

Współtwórca:

Jurczak, Paweł - red.

Tytuł publikacji grupowej:

IJAME, volume 19 (2014)

Abstract:

The present paper is devoted to the study of phase velocity and attenuation of longitudinal shear vibrations of hollow poroelastic circular cylinders in the presence of dissipation. The explicit expressions for phase velocity and attenuation of longitudinal shear vibrations are derived. The frequency equation of longitudinal shear vibrations and modes obtained in a previous paper are used to compute the phase velocity and attenuation for different dissipations for thin and thick poroelastic cylindrical shells and poroelastic solid cylinder. ; The physical parameters of sandstone saturated with kerosene and sandstone saturated with water are used for the purpose of computation. It is found that the phase velocity is linear beyond certain frequency. Phase velocity is smaller for a typical anti-symmetric mode compared to the flexural mode. It is greater for the second mode than that of the first mode. Also the phase velocity is larger for a thin poroelastic cylindrical shell than that of a thick poroelastic cylindrical shell. The same is true for attenuation also. Attenuation is very high for the considered dissipations and it increases with the increase in dissipation.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Format:

application/pdf

Identyfikator zasobu:

oai:zbc.uz.zgora.pl:73984

DOI:

10.2478/ijame-2014-0022

Strony:

337-346

Źródło:

IJAME, volume 19, number 2 (2014)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

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Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego

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