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TECHNICAL PAPERS

Effect of Material Stress-Strain Behavior and Pipe Geometry on the Deformability of High-Grade Pipelines

[+] Author and Article Information
Hiroshi Yatabe

Pipeline Technology Center, Tokyo Gas Co., Ltd., 1-7-7, Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045, Japane-mail: yatabe-h@tokyo-gas.co.jp

Naoki Fukuda

Pipeline Technology Center, Tokyo Gas Co., Ltd., 1-7-7, Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045, Japane-mail: fnaoki@tokyo-gas.co.jp

Tomoki Masuda

Pipeline Technology Center, Tokyo Gas Co., Ltd., 1-7-7, Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045, Japane-mail: tmasuda@tokyo-gas.co.jp

Masao Toyoda

Osaka University, 2-1, Yamada-oka, Suita, 565-0871, Japane-mail: toyoda@mapse.eng.osaka-u.ac.jp

J. Offshore Mech. Arct. Eng 126(1), 113-119 (Mar 02, 2004) (7 pages) doi:10.1115/1.1643083 History: Received April 01, 2002; Revised February 01, 2003; Online March 02, 2004
Copyright © 2004 by ASME
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References

Figures

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Effect of Y/T on the deformability of the line pipe. (YS=const.)
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Effect of Y/T on the deformability of the line pipe. (TS=const.)
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Effect of the material stress-strain behavior on the deformability of the line pipe
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Effect of D/t on the deformability of the line pipe
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Definition of the “complementary energy”
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The relationships between the complementary energy and the deformability
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Configuration of test setup
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Strain gauge arrangement
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Applied load F vs nominal compressive strain εnom
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Configurations of pipe specimen (Case 1, D/t=43.2)
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Maximum local strain IεmaxI vs nominal compressive strain εnom
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Boundary condition and FE mesh for analysis. (1) Boundary condition. (2) Overview of FE mesh. (3) Detail of A in (2)
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Comparison of analytical and experimental results. (Cases 1 and 2)
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Wrinkled shape calculated by the FE-analysis. (Case 1, εnom=3%)
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The material stress-strain curves for the FE-analyses. (Models 1 and 6-8)

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