Comparison between Contact and Immersion Method in Ultrasonic Stress Measurement of Welded Stainless Steel Plates

    Volume 41, Issue 5 (September 2013)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 2 July 2013

    Page Count: 10


    Javadi, Yashar
    Dept. of Mechanical Engineering, Islamic Azad Univ. - Semnan Branch, Semnan,

    Najafabadi, Mehdi Ahmadi
    Dept. of Mechanical Engineering, Amirkabir Univ. of Technology, Tehran,

    Akhlaghi, Mehdi
    Dept. of Mechanical Engineering, Amirkabir Univ. of Technology, Tehran,

    (Received 28 August 2012; accepted 22 February 2013)

    Abstract

    This study presents a comparison between contact and immersion ultrasonic method to measure welding residual stress of austenitic 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.


    Paper ID: JTE20120267

    DOI: 10.1520/JTE20120267

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    Author
    Title Comparison between Contact and Immersion Method in Ultrasonic Stress Measurement of Welded Stainless Steel Plates
    Symposium , 0000-00-00
    Committee A01