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Journal of Pressure Vessel Technology
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A Comparison Between Measured and Modeled Residual Stresses in a Circumferentially Butt-Welded P91 Steel Pipe
Residual macrostresses in a multipass circumferentially butt-welded P91 ferritic steel pipe have been determined numerically and experimentally. The welded joint in a pipe with an outer diameter of 29...
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Improved Prediction Method for Estimating Notch Elastic-Plastic Strain

J. Pressure Vessel Technol.  -- February 2010 --  Volume 132,  Issue 1, 011401 (8 pages)
doi:10.1115/1.4000371

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Author(s):
R. Adibi-Asl and R. Seshadri
Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada
Notch stress-strain conversion (NSSC) rules are widely used to estimate nonlinear and history-dependent stress-strain behavior of the notch components or structures. This paper focuses on the estimation of stress and strain using the conventional NSSC rules and linear elastic analysis by considering the entire relaxation locus of the component during inelastic action. On the basis of local effects, net-section collapse, and reference stress, a simple method for estimating inelastic strain in the vicinity of stress concentrations is proposed. The accuracy of the method is compared with elastic-plastic finite element analysis for several notch configurations exhibiting two-dimensional and three-dimensional effects.

©2010 American Society of Mechanical Engineers

History: Received 22 May 2009; revised 2 September 2009; published 10 November 2009
doi: http://dx.doi.org/10.1115/1.4000371

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PUBLICATION DATA

Coden:
JPVTAS
ISSN:
0094-9930 (print)   1528-8978 (online)
Publisher:
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