000016042 001__ 16042
000016042 005__ 20161115135336.0
000016042 04107 $$aeng
000016042 046__ $$k2013-06-12
000016042 100__ $$aJavadi, Y.
000016042 24500 $$aEvaluation of Welding Residual Stress in Stainless Steel Pipes By Using the Lcr Ultrasonic Waves

000016042 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000016042 260__ $$bNational Technical University of Athens, 2013
000016042 506__ $$arestricted
000016042 520__ $$2eng$$aThe ultrasonic residual stresses evaluation is based on the acoustoelastic effect that refers to the velocity change of the elastic waves when propagating in a stressed media. The experimental method using the longitudinal critically refracted (LCR) waves requires an acoustoelastic calibration and an accurate measurement of the time-of-flight on both stressed and unstressed media. This paper evaluates welding residual stresses in welded pipe-pipe joint of austenitic stainless steel. The residual stresses in inner and outer surface of pipes were evaluated by LCR ultrasonic waves by using 1 Mhz, 2 Mhz, 4 Mhz and 5 Mhz transducers. It has been shown that the difference in residual stresses between inner and outer surfaces of pipes and also between base metal and welded zone can be inspected by LCR waves.

000016042 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000016042 653__ $$aUltrasonic Stress Measurement; Acoustoelastic Effect; Welding Residual Stress; LCR.

000016042 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000016042 720__ $$aJavadi, Y.$$iPlevris, V.
000016042 8560_ $$ffischerc@itam.cas.cz
000016042 8564_ $$s803465$$uhttps://invenio.itam.cas.cz/record/16042/files/2157.pdf$$yOriginal version of the author's contribution as presented on CD, section: SC-RS 13 OPTIMIZATION
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000016042 962__ $$r15525
000016042 980__ $$aPAPER