A method for reconstruction of residual stress fields from measurements made in an incompatible region

Harry E Coules, David J Smith, Kiranmayi Abburi Venkata, Christopher E Truman

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

17 Citations (Scopus)

Abstract

A method is introduced by which the complete state of residual stress in an elastic body may be inferred from a limited set of experimental measurements. Two techniques for carrying out this reconstruction using finite element analysis are compared and it is shown that for exact reconstruction of the stress field via this method, the stress field must be measured over all eigenstrain-containing regions of the object. The effects of error and incompleteness in the measured part of the stress field on the subsequent analysis are investigated in a series of numerical experiments using synthetic measurement data based on the NeT TG1 round-robin weld specimen. It is hence shown that accurate residual stress field reconstruction is possible using measurement data of a quality achievable using current experimental techniques.
Original languageEnglish
Pages (from-to)1980-1990
Number of pages11
JournalInternational Journal of Solids and Structures
Volume51
Issue number10
Early online date19 Feb 2014
DOIs
Publication statusPublished - 15 May 2014

Fingerprint Dive into the research topics of 'A method for reconstruction of residual stress fields from measurements made in an incompatible region'. Together they form a unique fingerprint.

Cite this