Uncertainties in Triaxial Residual Stress Measurements

D. M. Goudar, S. Hossain, C. E. Truman, E. J. Kingston, D. J. Smith

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

4 Citations (Scopus)

Abstract

Residual stress measurement techniques using mechanical strain relaxation depend on a number of physical quantities and are therefore sensitive to errors associated with the measured data. The resulting stress uncertainties can easily become significant and compromise the usefulness of the results or lead to misinterpretation of the behaviour of the residual stress distributions. It is therefore essential to develop an error analysis procedure for the measurements undertaken. Error analysis procedures for the deep hole drilling (DHD) method are developed to consider triaxial residual stresses. A modified deep hole drilling method, called the incremental deep-hole drilling (iDHD), was applied to measure the near yield residual stress distributions in a cold water quenched aluminium 7010 alloy forged block. The experimental results are used to illustrate the errors.

Original languageEnglish
Title of host publicationRESIDUAL STRESSES VIII
EditorsP Scardi, CLA Ricardo
Place of PublicationSTAFA-ZURICH
PublisherTrans Tech Publications Inc
Pages498-503
Number of pages6
ISBN (Print)*****************
DOIs
Publication statusPublished - 2011
Event8th European Conference on Residual Stresses (ECRS 8) - Riva del Garda, Italy
Duration: 26 Jun 201028 Jun 2010

Conference

Conference8th European Conference on Residual Stresses (ECRS 8)
CountryItaly
CityRiva del Garda
Period26/06/1028/06/10

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