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Residual stress and damage initiation in small stainless steel pipework

Quinn, S., Tatum, P.J., Dulieu-Barton, J.M. and Eaton-Evans, J. (2006) Residual stress and damage initiation in small stainless steel pipework In Proceedings of the 2006 SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2006 (SEM 06). Society for Experimental Mechanics (SEM). 10 pp, pp. 763-772.

Record type: Conference or Workshop Item (Paper)


The assessment of residual stresses using thermoelastic stress analysis (TSA) relies in theory on small second order effects, making reliable estimates of residual stress in standard materials using this technique a difficult proposition. However, previous work by the authors has shown that plastic deformation changes the thermoelastic constant in steel and aluminium, demonstrating a much greater potential for TSA to be used as the basis for non-contact non-destructive full-field residual stress assessment. This paper provides details of the initial studies and extends the work to cover assessment of small diameter stainless steel pipe that has been subjected to multiple deformations. The level of theoretical residual stress in the pipe as it develops over a number of successive deformations has been estimated from a combination of the stress-strain data for the material, 304L stainless steel, and the deformation of the pipe. Calibration tests are carried out on pipes that have experienced known levels of plastic strain and used to establish if TSA can assess the effect of residual stress on pipes that have been bent to shape and straightened a known number of times.

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Submitted date: 3 April 2006
Published date: 4 June 2006
Venue - Dates: SEM Annual Conference and Exposition on Experimental and Applied Mechanics (SEM 06), 2006-06-04 - 2006-06-07
Keywords: stainless steel, residual stresses, stress analysis, thermoelasticity, calibration, plastic deformation, strain
Organisations: Fluid Structure Interactions Group


Local EPrints ID: 48735
ISBN: 091205395X
PURE UUID: 8a455f89-eb9a-4fed-8303-09b34b8db88d
ORCID for S. Quinn: ORCID iD

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Date deposited: 10 Oct 2007
Last modified: 17 Jul 2017 14:58

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Author: S. Quinn ORCID iD
Author: P.J. Tatum
Author: J. Eaton-Evans

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