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Volume 46, Issue 6 (March 2018)
Pulsed Eddy Current Applied to Measure Residual Stress in Welding
(Received 3 October 2016; accepted 8 June 2017)
Published Online: 19 March 2018
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Welding is a manufacturing process of joining components that is dominant in industries that include civil, oil and gas, automotive, etc. Although it has various benefits, welding still causes residual stresses to remain in a component after welding. Residual stresses may result in unexpected failure and may worsen mechanical performance. Common methods to measure residual stresses include hole-drilling and X-ray diffraction and are characterized by their lack of reliability and complicated implementation process. In this study, pulsed eddy current (PEC) is introduced as a promising technique to measure subsurface residual stress in welding. First, the PEC method is calibrated and the correlation between signals and known stresses are identified, and then the residual stress in a welded component is estimated, and finally, the residual stresses measured by PEC were compared to the results obtained by the finite element technique.
Science and Engineering Department, Macquarie University, Sydney,
Mechanical Engineering Department, Golpayegan University of Engineering, Isfahan, Golpayegan
Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Soete Laboratory, Ghent University, Zwijnaarde, Ghent
Stock #: JTE20160504
Title Pulsed Eddy Current Applied to Measure Residual Stress in Welding