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TECHNICAL PAPERS

The Influence of Multiple Axial Erosions on the Fatigue Life of Autofrettaged Pressurized Cylinders

[+] Author and Article Information
M. Perl

Pearlstone Center for Aeronautical Engineering Studies, Ben Gurion University of the Negev, Beer Sheva 84105, Israel

C. Levy

Department of Civil Engineering, Academic College of Judea and Samaria, Ariel 44837, Israelon leave from Department of Mechanical Engineering, Florida International University, Miami, FL 33199

Q. Ma

Mechanical Engineering Department, Carnegie-Mellon University, Pittsburgh, PA 15213

J. Pressure Vessel Technol 123(3), 293-297 (Feb 05, 2001) (5 pages) doi:10.1115/1.1372325 History: Received April 17, 2000; Revised February 05, 2001
Copyright © 2001 by ASME
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References

Figures

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Model of a multiply eroded cracked cylinder with five erosions and one crack
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SCF at the tip of each erosion for cylinders with one to 30 semi-circular erosions (d/t=0.1, α=12 deg)
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Maximum SCFs versus the number of semi-circular erosions as a function of erosion curvature (α=12 deg)
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Maximum SCFs versus the number of semi-circular erosions as a function of erosion depth (α=12 deg)
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Maximum SCFs versus separation angle α for three configurations of semi-circular erosions
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KIP/KI0 for the one crack in a pressurized cylinder with one, three, or five semi-circular erosions (d/t=0.05; α=12 deg)
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KIP/KI0 versus span angle for the one crack in a pressurized cylinder with one or three semi-circular erosions (d/t=0.05; α=12 deg)
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The normalized effective SIF versus crack length for the one crack in a pressurized cylinder with one, three, or five semi-circular erosions (d/t=0.05; α=12 deg)
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The normalized effective SIF versus erosion span angle for the one crack in a pressurized cylinder with one or three semi-circular erosions (d/t=0.05; α=12 deg)
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Keff/K0 versus crack length for the one crack in a pressurized cylinder with various semi-circular erosions of different ellipticities (d/t=0.05; α=12 deg)

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