&lt;title&gt;Investigation in welding technology for pipelines at a nuclear plant by holographic interferometry&lt;/title&gt;

Obraztsov, Vladimir S.; Одинцев, И. Н.; Zakharzhevsky, Yu. O.; Pavlov, M. A.; Tsykin, A. V.

doi:10.1117/12.560153

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2021

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“…Remarkable properties of reflection hologram interferometry with respect to residual stresses determination in thin-walled plane structures by through hole drilling have been previously established and comprehensively demonstrated [16][17][18][19]. Among them the unique capability of recognizing principal stress directions at the stage of fringe patterns reconstruction is of great importance.…”

Section: Main Experimental Featuresmentioning

confidence: 99%

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Residual Stresses Determination near FSW Joints by Combining the Hole Drilling Method and Reflection Hologram Interferometry

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2021

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The results of residual stress characterization near friction stir welded (FSW) butt joint of aluminum plates are reported. The experimental analysis employs two-side measurements of local deformation response on small hole drilling by reflection hologram interferometry. The approach developed is based on the unequivocally solution of the properly posed inverse problem thus deriving both membrane and bending residual stress components. Residual stress components of high level are derived inside the tool shoulder borders on both specimen faces.

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Section: Main Experimental Featuresmentioning

confidence: 99%

“…The paper is devoted to the determination of both membrane and bending residual stress components near FSW joints of plates by the general approach. This technique is based on the combined use of the hole drilling method and reflection hologram interferometry [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%