Residual Stresses in Ultrasonically Peened Fillet Welded Joints

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Abstract

Fatigue cracks mostly initiate at areas subjected to high tensile residual stress and stress concentration. Ultrasonic peening is a mechanical method to increase fatigue life by imparting compressive residual stress. In this study residual stresses are characterized in fillet welded ship structural steel plates with longitudinal attachments. As-welded, ultrasonically peened, and specimens peened then subjected to accelerated corrosion testing were measured. Residual stress characterization was performed by the contour method and neutron diffraction.
Original languageEnglish
Pages (from-to)755-760
JournalAdvanced Materials Research
Volume996
Issue numberChapter III. Materials and Structures
DOIs
Publication statusPublished - Aug 2014

Bibliographical note

The paper is available at: http://dx.doi.org/10.4028/www.scientific.net/AMR.996.755

Keywords

  • Residual stress
  • ultrasonic peening
  • accelerated corrosion testing
  • contour method
  • neutron diffraction.

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