Long‐Term Deformation and Failure of Buried Plastic Pipes
Publication: Journal of Engineering Mechanics
Volume 113, Issue 7
Abstract
This investigation concerns the mechanical behavior of plastic pipes buried in a trench and subjected to gravitational loading by the trench fill. The pipe materials of interest, particularly in regard to sewers and drains, are polyvinylchloride and high‐density polyethylene. The analysis is confined to inplane behavior and is carried out with a two‐dimensional finite element model of the pipe‐trench system, taking kinematical nonlinearities fully into account. The pipe materials are modeled as linear viscoelastic, and trench materials as linear elastic, although plastic and viscous effects are estimated. For a realistic range of material parameters, stresses and deformations arising in the system with time are determined, and the risk of final failure through excessive deformation is discussed.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 113 • Issue 7 • July 1987
Pages: 1033 - 1049
Copyright
Copyright © 1987 ASCE.
History
Published online: Jul 1, 1987
Published in print: Jul 1987
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