Dynamic Behavior of a Buried Pipe in a Seismic Environment

[+] Author and Article Information
S. K. Datta, N. El-Akily

Department of Mechanical Engineering, University of Colorado, Boulder, Colo.

A. H. Shah

Department of Civil Engineering, University of Manitoba, Winnipeg, Canada

J. Appl. Mech 49(1), 141-148 (Mar 01, 1982) (8 pages) doi:10.1115/1.3161957 History: Received September 01, 1980; Revised April 01, 1981; Online July 21, 2009


Axisymmetric dynamic response of a buried pipe due to an incident compressional wave is the subject of this investigation. The pipe has been modeled as a thin cylindrical shell of linear homogeneous isotropic elastic material embedded in a linear isotropic homogeneous elastic medium of infinite extent. The response characteristics of the pipe due to changes in the material properties of the surrounding medium have been carefully studied. It is found that even at long wavelengths and low frequencies, the dynamic response is significantly altered by the changes in the Poisson’s ratio and the rigidity modulus of the surrounding medium. Further, it is found that there are real resonant frequencies of the pipe that are also significantly dependent on these quantities, as well as on the wavelength.

Copyright © 1982 by ASME
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