Employing the LCR Waves to Measure Longitudinal Residual Stresses in Different Depths of a Stainless Steel Welded Plate
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Ultrasonic stress measurement is based on the acoustoelasticity law which presents the relationship between the stress and acoustic wave velocity in engineering materials.
The technique uses longitudinal critically refracted (LCR) waves that travel parallel to the material surface.
The LCR wave is a bulk longitudinal wave that propagates within an effective depth underneath the surface while the penetration depth of a LCR wave depends on its frequency.
It is possible to measure the residual stress in different depths by employing different frequencies of the LCR waves.
This paper evaluates welding residual stresses in different depths of a plate made of austenitic stainless steel (304L).
The penetration depths are accurately measured for the LCR waves produced by 1 MHz, 2 MHz, 4 MHz, and 5 MHz transducers.
Residual stresses through the thickness of the plate are then evaluated by employing four different series of transducers.
It has been concluded that the LCR method is nondestructive, easy and fast, portable, readily available, and low cost and bulk measuring technique which can be accurately employed in through-thickness stress measurement of austenitic stainless steels.
American Psychological Association (APA)
Javadi, Yashar& Hloch, Sergej. 2013. Employing the LCR Waves to Measure Longitudinal Residual Stresses in Different Depths of a Stainless Steel Welded Plate. Advances in Materials Science and Engineering،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-495385
Modern Language Association (MLA)
Javadi, Yashar& Hloch, Sergej. Employing the LCR Waves to Measure Longitudinal Residual Stresses in Different Depths of a Stainless Steel Welded Plate. Advances in Materials Science and Engineering No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-495385
American Medical Association (AMA)
Javadi, Yashar& Hloch, Sergej. Employing the LCR Waves to Measure Longitudinal Residual Stresses in Different Depths of a Stainless Steel Welded Plate. Advances in Materials Science and Engineering. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-495385
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495385