Numerical Simulation of Creep-Induced Buckling of Thin-Walled Pipe Liners

[+] Author and Article Information
Qiang Zhao, Raja Nassar, David E. Hall

College of Engineering and Science, Louisiana Tech University, Ruston, LA 71272

J. Pressure Vessel Technol 123(3), 373-380 (Apr 20, 2001) (8 pages) doi:10.1115/1.1381533 History: Received September 06, 2000; Revised April 20, 2001
Copyright © 2001 by ASME
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Creep model versus test data—(a) results and fit of tensile data, (b) results and fit of compressive data
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One-lobe and two-lobe finite element model setups
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Typical time-deflection curves
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Typical maximum stress-time curves
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Typical time-deflection curves for various pressure levels
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Typical critical time-pressure ratio curve
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Tcr versus pressure for different gap ratios, G
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Comparison of model predictions and test results (tests truncated at 10,000 h)




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