Reconstruction of residual stresses in autofrettaged thick-walled tubes from limited measurements

GH Farrahi, SA Faghidian, DJ Smith

Research output: Contribution to journalArticle (Academic Journal)peer-review

24 Citations (Scopus)

Abstract

An analytical method for reconstructing residual stresses within axisymmetric cylinders is presented. The method uses the stress equilibrium and boundary conditions together with an Airy stress function that satisfies these conditions. The method allows the reconstruction of residual stresses from limited measurements. The analysis is also coupled to a least squares approximation and a regularization analysis to provide stability of the inverse problem. The application of the method is demonstrated for four cases; two correspond to analytical solutions for residual stresses created during autofrettage and two sets of experimental results for through wall measurements of residual stresses. In all cases the reconstructions are successful.
Translated title of the contributionReconstruction of residual stresses in autofrettaged thick-walled tubes from limited measurements
Original languageEnglish
Pages (from-to)777 - 784
Number of pages8
JournalInternational Journal of Pressure Vessels and Piping
Volume86(11)
DOIs
Publication statusPublished - Nov 2009

Bibliographical note

Publisher: Elsevier

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