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RESEARCH PAPER

Parallel Hybrid Algorithm for Three-Dimensional Elastic Wave Scattering in Steel Pipes

[+] Author and Article Information
A. Mahmoud, N. Popplewell

Mechanical and Industrial Engineering Department, University of Manitoba, Winnipeg, Manitoba, R3T 5V6, Canada

A. H. Shah

Civil Engineering Department, University of Manitoba, Winnipeg, Manitoba, R3T 5V6, Canada

J. Pressure Vessel Technol 126(4), 510-517 (Dec 01, 2004) (8 pages) doi:10.1115/1.1762449 History: Received May 19, 2003; Revised November 20, 2003; Online December 01, 2004
Copyright © 2004 by ASME
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References

Figures

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(a) Lateral section of a cylinder having an inclined, surface breaking, symmetrical crack, and (b) cross section through the crack
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Illustrating the mesh scheme for the condensation procedure: (a) Arrangement of nodes in a plane; and (b) arrangement of planes.
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An 8-processor (P1[[ellipsis]]P8) having a (a) shared-memory and (b) distributed memory architecture
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Structure of a parallel region in an OpenMP program
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Reflection coefficients for three vertical cracks (ϕ=0) having different lengths
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Reflection coefficients versus normalized frequency for various axisymmetric cracks in a welded steel pipe. H/Rm=0.1, ν=0.29, W=0.1875, and B=0.09375.
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Reflection coefficients versus normalized frequency for variously sized, nonaxisymmetric inclined (ϕ=20 deg) cracks in a steel pipe. D=0.3,H/Rm=0.135, ν=0.287, and W=0.4.
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Reflection coefficients versus normalized frequency for variously sized, nonaxisymmetric vertical (ϕ=0) circumferential cracks in a welded steel pipe. H/Rm=0.1, ν=0.29, W=0.1875, and B=0.09375.
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Normalized reflection and transmission coefficients in a welded steel pipe as a function of the crack length. f=190 kHz,H/Rm=0.1, ν=0.29, D=0.5, ϕ=0, W=0.1875, and B=0.09375. (a) Reflection coefficients, and (b) transmission coefficients.

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