This paper investigates ultrasonic method in stress measurement of a pressure vessel made of austenitic stainless steel 304 L. Longitudinal critically refracted (LCR) waves are employed to measure the welding residual stresses. The acoustoelastic constant is measured through a hydro test while the pressure vessel is kept intact. Hole-drilling method is used to verify the results of ultrasonic measurement corresponding to axial and hoop residual stresses of the pressure vessel. The results show good agreement between hole-drilling and ultrasonic stress measurements which is accomplished nondestructively.
Ultrasonic Evaluation of Welding Residual Stresses in Stainless Steel Pressure Vessel
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the Journal of Pressure Vessel Technology. Manuscript received September 14, 2012; final manuscript received December 11, 2012; published online June 11, 2013. Assoc. Editor: Jianmin Qu.
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Javadi, Y., Salimi Pirzaman, H., Hadizadeh Raeisi, M., and Ahmadi Najafabadi, M. (June 11, 2013). "Ultrasonic Evaluation of Welding Residual Stresses in Stainless Steel Pressure Vessel." ASME. J. Pressure Vessel Technol. August 2013; 135(4): 041502. https://doi.org/10.1115/1.4023432
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