Residual stresses in welded high-strength steel I-Beams

Simple item page
dc.contributor.authorLe, Ten_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorBradford, MAen_AU
dc.contributor.authorLiu, XPen_AU
dc.contributor.authorValipour, HRen_AU
dc.date.accessioned2021-02-12T06:01:20Zen_AU
dc.date.available2021-02-12T06:01:20Zen_AU
dc.date.issued2020-04en_AU
dc.date.statistics2021-02-11en_AU
dc.description.abstractThis study investigates a unified residual stress model applicable for welded high-strength steel (HSS) I-beams. In the experimental program, the homogeneous specimens including two prismatic I-beam samples and a web-tapered I-beam fabricated from Australian BISPLATE-80 and BISPLATE-100 steel plates having nominal yield stresses of 690 MPa and 890 MPa respectively were inspected to determine their residual stress distribution using a non-destructive neutron diffraction technique. Details of this neutron diffraction method for measuring residual stresses are presented. It is shown that the technique can achieve high spatial resolution of the residual stresses as well as capturing the high stress gradient in the heat-affected zone, as a consequence of the deep penetration of the neutron particles into the material. The pattern of residual stresses in the specimens reveals that the tensile stresses peak at the flange-web junctions at an average of 70% of the parent material yield stresses, and that the compressive residual stresses have an approximately uniform distribution that dominates large regions of the flange and web. The test results reconfirm the compressive residual stresses being related to the geometry of the cross-section and independent of the steel grade. The interaction of the residual stresses in the flanges and web was found to be negligible for both prismatic and web-tapered beams. A residual stress model applicable for welded thin-walled I-section members for steel grades between 460 MPa and 1000 MPa is proposed by fitting the test results and collective data available in the literature. This representation was incorporated into a detailed finite element (FE) model and it is shown that the FE predictions are in good agreement with the results of experiments conducted on a wide range of HSS I-section beams tested to failure caused by buckling and/or yielding. ©2019 Published by Elsevier Ltd.en_AU
dc.identifier.articlenumber105849en_AU
dc.identifier.citationLe, T., Paradowska, A., Bradford, M. A., Liu, X., & Valipour, H. R. (2020). Residual stresses in welded high-strength steel I-Beams. Journal of Constructional Steel Research, 167, 105849. doi:10.1016/j.jcsr.2019.105849en_AU
dc.identifier.issn0143-974Xen_AU
dc.identifier.journaltitleJournal of Constructional Steel Researchen_AU
dc.identifier.urihttps://doi.org/10.1016/j.jcsr.2019.105849en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10397en_AU
dc.identifier.volume167en_AU
dc.language.isoenen_AU
dc.publisherElsevier B. V.en_AU
dc.subjectDeformationen_AU
dc.subjectFlexural strengthen_AU
dc.subjectSteelsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectResidual stressesen_AU
dc.subjectYield strengthen_AU
dc.titleResidual stresses in welded high-strength steel I-Beamsen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles