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Research Papers: NDE

Ultrasonic Evaluation of Welding Residual Stresses in Stainless Steel Pressure Vessel

[+] Author and Article Information
Yashar Javadi

Ph.D. Candidate
e-mail: yashar_javadi@aut.ac.ir

Hamed Salimi Pirzaman

MSc. Student
e-mail: hamedsalimi66@gmail.com

Mohammadreza Hadizadeh Raeisi

BSc. Student
e-mail: m.r.hadizadeh.r@gmail.com

Mehdi Ahmadi Najafabadi

Associate Professor
e-mail: ahmadin@aut.ac.ir
Department of Mechanical Engineering,
Amirkabir University of Technology,
424 Hafez Avenue,
Tehran 15875-4413, Iran

1Corresponding author.

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.

J. Pressure Vessel Technol 135(4), 041502 (Jun 11, 2013) (6 pages) Paper No: PVT-12-1148; doi: 10.1115/1.4023432 History: Received September 14, 2012; Revised December 11, 2012

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.

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References

Thompson, R. B., Lu, W. Y., and Clark, A. V., Jr., 1996, Handbook of Measurement of Residual Stress, J.Lu, M.James, and G.Roy, eds., Society for Experimental Stress Analysis, Bethel, CT, pp. 149–178.
Schneider, E., 1997, Structural and Residual Stress Analysis by Nondestructive Methods, V.Hauk, ed., Elsevier, Amsterdam, pp. 522–563.
Santos, A., and Bray, D. E., 2000, “Ultrasonic Stress Measurement Using PC Based and Commercial Flaw Detectors,” Rev. Sci. Instrum., 71(9), pp. 3464–3469. [CrossRef]
Santos, A. A., and Bray, D. E., 2000, “Application of Longitudinal Critically Refracted Waves to Evaluate Stresses in Railroad Wheels,” Topics on Nondestructive Testing, Vol. 5, The American Society for Nondestructive Testing, Columbus, OH.
Bray, D. E., and Chance, B., 1999, Practical Aspects of Ultrasonic Stress Measurement, Vol. 19, C.Darvennes, ed., ASME NDE, San Antonio, TX, pp. 75–79.
Tanala, E., Bourse, G., Fremoit, M., and De Belleval, J. F., 1995, “Determination of Near Surface Residual Stresses on Welded Joints Using Ultrasonic Methods,” NDT & E Int., 28(2), pp. 83–88. [CrossRef]
Szelazek, J., 1998, “Monitoring of Thermal Stresses in Continuously Welded Rails With Ultrasonic Technique,” Electromagnetic Nondestructive Testing’98, Copenhagen, 26–29 May, Vol.3(6), NDT Net, June.
Bray, D. E., 2002, “Ultrasonic Stress Measurement and Material Characterization in Pressure Vessels, Piping, and Welds,” J. Pressure Vessels, 124, pp. 326–335. [CrossRef]
Egle, D. M., and Bray, D. E., 1976, “Measurement of Acoustoelastic and Third-Order Elastic Constants for Rail Steel,” J. Acoust. Soc. Am., 60(3), pp. 741–744. [CrossRef]

Figures

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Fig. 1

LCR wave propagated in the stainless steel pipe through the PMMA wedge

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Fig. 2

Pressure vessel dimensions

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Fig. 3

Measurement devices for TOF measurement

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Fig. 4

Hydro test setup to measure acoustoelastic constant of the pressure vessel

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Fig. 5

Results of hydro test to evaluate hoop acoustoelastic constant

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Fig. 6

Results of hydro test to evaluate the axial acoustoelastic constant

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Fig. 7

Axial residual stresses of the pressure vessel measured by the ultrasonic and hole-drilling method

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Fig. 8

Hoop residual stresses of the pressure vessel measured by the ultrasonic and hole-drilling method

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