Comparison between contact and immersion method in ultrasonic stress measurement of welded stainless steel plates

Yashar Javadi, Mehdi Ahmadi Najafabadi, Mehdi Akhlaghi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study presents a comparison between contact and immersion ultrasonic method to measure welding residual stress of austen-itic stainless steel plates (AISI 304L). Longitudinal critically refracted (LCR) waves are employed to measure the residual stresses. By using contact and immersion transducers, a 3D distribution of longitudinal residual stress for the entire of the welded plate is presented. A finite-element model of welding process, which is validated by the hole-drilling method, is used to verify the ultrasonic results. The results show no considerable differences between using contact or immersion transducers in ultrasonic stress measurement of stainless steel plates; however, some practical considerations are mentioned.

Original languageEnglish
Pages (from-to)788-797
Number of pages10
JournalJournal of Testing and Evaluation
Volume41
Issue number5
Early online date2 Jul 2013
DOIs
Publication statusPublished - 17 Jul 2013

Keywords

  • acoustoelasticity
  • contact ultrasonic stress measurement
  • finite-element welding simulation
  • immersion ultrasonic stress measurement
  • welding residual stress

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