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Abstract
Author(s) -
Yashar Javadi,
Mehdi Ahmadi Najafabadi,
Mehdi Akhlaghi
Publication year - 1984
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1111/j.1600-0447.1984.tb11051.x
Subject(s) - citation , psychology , computer science , library science
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 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.