Testing and Analysis of Steel Pipes under Bending, Tension, and Internal Pressure
Publication: Journal of Structural Engineering
Volume 135, Issue 2
Abstract
This paper reports a full-scale experimental program consisting of six pipe specimens made of X65 material (specified minimum yield ) with outer diameter, and a diameter-to-thickness ratio of 81.2 subjected to combinations of bending, axial tension, and internal pressure. The study is aimed at determining whether the pipes are able to attain their modified plastic moment as predicted by analytically derived plastic interaction relations. The moment versus curvature relations, peak moment values, and local buckling behavior of the specimens as obtained from the experiments are documented. The peak moments obtained are compared to the analytically predicted moments. A nonlinear shell finite-element model is also developed using the finite-element analysis (FEA) simulator ABAQUS in order to predict the moment capacity and the local buckling behavior. Test results compare well with FEA results. It is observed that under certain combinations of axial tension and internal pressure, pipes with are able to attain their plastic moment resistances.
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Acknowledgments
The research presented herein was supported by TransCanada Pipelines Company (TCPL), which donated the pipe specimens tested, the Canadian Foundation of Innovation (CFI), the Ontario Innovation Trust (OIT), which provided funding for the acquisition of the equipment used, and the Natural Sciences and Engineering Council of Canada (NSERC). The writers acknowledge scholarship support from the Ontario Graduate Scholarship Program (OGS) to the first writer.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 135 • Issue 2 • February 2009
Pages: 187 - 197
Copyright
© 2009 ASCE.
History
Received: May 7, 2007
Accepted: Jul 23, 2008
Published online: Feb 1, 2009
Published in print: Feb 2009
Notes
Note. Associate Editor: Kim J. R. Rasmussen
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