Evaluation of Welding Residual Stresses Using the Incremental Hole-Drilling Technique

Abstract:

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In this work the reliability of the hole-drilling technique (HDT) for measuring welding residual stresses was analysed. HDT residual stress results were systematically compared with those determined by X-ray diffraction. A systematic overestimation of the residual stresses determined by HDT was observed, which was mainly attributed to the possibility of the so-called plasticity effect occurring. Experimental results were discussed taking the measurement principles of both techniques into consideration. In addition, preliminary results of a numerical study, using the finite element method, will be presented for a better understanding of the plasticity effect on HDT residual stress results.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

768-773

DOI:

10.4028/www.scientific.net/MSF.514-516.768

Citation:

J. P. Nobre et al., "Evaluation of Welding Residual Stresses Using the Incremental Hole-Drilling Technique ", Materials Science Forum, Vols. 514-516, pp. 768-773, 2006

Online since:

May 2006

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Price:

$35.00

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