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RESEARCH PAPERS

A Shell Model of a Buried Pipe in a Seismic Environment

[+] Author and Article Information
G. E. Muleski

Engineering Science Program, University of Notre Dame, Notre Dame, Ind. 46556

T. Ariman, C. P. Aumen

Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Ind. 46556

J. Pressure Vessel Technol 101(1), 44-50 (Feb 01, 1979) (7 pages) doi:10.1115/1.3454597 History: Received September 25, 1978; Revised January 29, 1979; Online October 25, 2010

Abstract

In a number of recent investigations, a buried pipe undergoing seismic excitation was modelled as a beam on a visco-elastic foundation. However, it is known that two of the observed failure modes in the buried pipelines under seismic loads are buckling and fracture. Therefore, in this paper, a thin circular cylindrical shell model in a resisting soil medium is used for a buried pipe. The coupled equilibrium equations arising from this model are modified to yield three decoupled equations which somewhat simplify the analysis. Then, an application for a long buried pipe is presented and the results are discussed and compared with those of the beam model.

Copyright © 1979 by ASME
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