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TECHNICAL PAPERS

Correlation of Test and FEA Results for the Nonlinear Behavior of Straight Pipes and Elbows

[+] Author and Article Information
Ying Tan, Vernon C. Matzen, Lixin Yu

Center for Nuclear Power Plant Structures, Equipment and Piping, North Carolina State University, Raleigh, NC 27695-7908

J. Pressure Vessel Technol 124(4), 465-475 (Nov 08, 2002) (11 pages) doi:10.1115/1.1493806 History: Received January 02, 2001; Revised May 20, 2002; Online November 08, 2002
Copyright © 2002 by ASME
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References

Figures

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Measured dimensions of test specimens
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Measured cross-sections
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Measured and constructed stress-strain curves
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In-Plane Bending—(a) FEA model (elevation view), (b) FEA model (oblique view), (c) boundary conditions
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FEA and test correlation for in-plane bending mode—(a) closing mode, (b) opening mode
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Correlation using PIPE60 element—(a) closing mode, (b) opening mode
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Simplified geometric model—(a) closing mode, (b) opening mode
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Measured geometric model—(a) closing mode, (b) opening mode
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Measurement of intrados wall thickness
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ABAQUS ELBOW31 element model
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Mello and Griffin test—(a) test arrangement, (b) load displacement curves
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Sobel and Newman 1980 test—(a) test arrangement, (b) moment-rotation
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Sobel and Newman 1986 test—(a) test arrangement, (b) moment-rotation
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Dhalla moment-rotation curves
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Suzuki and Nasu tests—(a) 24-in. test specimen test setup, (b) 12-in. specimen load displacement curves, (c) 24-in. specimen load displacement curves
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Ju test no. 6 (Do/t=35.7)—(a) quarter-FEA model, (b) boundary conditions (X-Y and Y-Z are planes of symmetry)
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Quarter-FEA model for test no. 11 (Do/t=19.5); same boundary conditions as Fig. 6(b)
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FEA correlation with data from Ju—(a) straight pipe, test no. 6 (Do/t=35.7), (b) straight pipe, test no. 11 (Do/t=19.5)
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In-plane closing/opening mode test—(a) test setup, (b) specimen configuration
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Correlation using ABAQUS ELBOW31 element—(a) closing mode, (b) opening mode
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Load-displacement curves for the closing mode—(a) opening mode, (b) closing mode

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