The Paton Welding Journal, 2024, №05



2024 №05 (05)

DOI of Article 10.37434/tpwj2024.05.06

2024 №05 (07)

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The Paton Welding Journal, 2024, #5, 41-47 pages

UltraMARS system for non-destructive measurement of residual stresses: New developments

J. Kleiman

Structural Integrity Technologies, Inc. (Sintec) Markham, Ontario, Canada

Abstract
One of the effective methods for non-destructive testing of residual and operating stresses is the acoustic method that is based on the propagation of elastic ultrasonic vibrations inside a solid body. A portable complex for measurement of applied and residual stresses in solid materials using an acoustic non-destructive stress control method was developed in the early 2000 by a team of scientists from Integrity Testing Laboratory, Sintec and E.O. Paton Electric Welding Institute (PWI). An advanced complex UltraMARS was developed based on the early prototype that allows measuring the magnitude and the sign of operating and residual stresses in laboratory and field conditions, either averaged through thickness, or in surface and subsurface layers, as well as monitoring stresses in metal structural elements during their manufacture, repair and operation. It is effective in assessing the quality of welded joints, after post-weld treatments carried out in order to redistribute residual stresses. It has been successfully used in various applications in marine, aerospace, construction and other industries. A four-pole transducer has been developed to improve the operational characteristics of the UltraMARS complex in monitoring stresses on the surface and in the near-surface layers of the material. It differs from the used two-pole transducers of the surface wave (Surface-Rayleigh Wave — Transducer RF12) and subsurface wave (Subsurface — Transducer SF12) in having two transmitter-receiver pairs located at 90° to each other. This change allowed measuring the velocity of ultrasonic waves simultaneously in both orthogonal directions without rotating the transmitterreceiver by 90°. To use these transducers with the UltraMARS complex, a transmitter- receiver switching program has been developed. A transducer with a variable pole distance was also developed for measurement of residual stresses in the near-surface layers of materials, making it possible to determine the uniaxial induced stresses to a depth from 0 to 8‒10 mm by changing the base distance between the emitter and receiver. At the moment, a stress control technique is being developed. 22 Ref., 10 Figures.
Keywords: residual stresses, non-destructive ultrasonic measurement of residual stresses, UltraMARS, variable base transducer, 4-pole transducer

Received: 11.03.2024
Received in revised form: 13.04.2024
Accepted: 14.06.2024

References

1. Kleiman, J., Kudryavtsev, Y. (2012) Residual stress management in welding: residual stress measurement and improvement treatments. In: Proc. of ASME 2012 31st Inter. Conf. on Ocean, Offshore and Arctic Engineering, 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symp., Rio de Janeiro, Brazil, July 1-6, 2012, 73-79. https://doi.org/10.1115/OMAE2012-83177
2. O'Brien, E. (2002) Crack tip residual stress and structural health monitoring. Materials Sci. Forum, 404-407, 779-784, https://doi.org/10.4028/www.scientific.net/MSF.404-407.779
3. Kleiman, J., Kudryavtsev, Y., Sugihara, H., (2018) Structural health monitoring (SHM) of residual and applied stresses using a non-destructive ultrasonic technique. In: Proc. of the Twenty-eighth Inter. Ocean and Polar Engineering Conf., Sapporo, Japan, June 10-15, 2018, 1372-1376.
4. Bray, D.E. (2002) Ultrasonic stress measurement in pressure vessels, piping and welds. J. of Pressure Vessel Technology, 124(3), August, 326-335. https://doi.org/10.1115/1.1480825
5. Gushcha. O.Y., Kot, V.G., Smilenko, V.M., Brodovy, V.O. (2011). Acoustic method of controlling subsurface stresses in solid media. Pat. Ukraine UA-93297.
6. Kudryavtsev, Y., Kleiman. J., Gushcha, O. (2000) Residual stress measurement in welded elements by ultrasonic method. In: Proc. of IX Inter. Cong. on Experimental Mechanics, Orlando, Florida, USA, June 5-8, 2000, 954-957.
7. Rollins, F.R.Jr., Kobett, D.R., Jons, CMJ J.L. (1963) Study of ultrasonic methods for nondestructive measurement of residual stress: Technical Documentary Report, WA DD-TR-61-42, Pt II, January, 1-38.
8. Schneider, E. (2009) Evaluation of stress states of components using ultrasonic and micro magnetic techniques. In: Proc. of the ASME 2009 Pressure Vessels and Piping Division Conf., PVP2009, July 26-30, 2009, Prague, Czech Republic, 1-9. https://doi.org/10.1115/PVP2009-77219
9. Uzun, F., Bilge, A.N., (2011) Investigation of total welding residual stress by using ultrasonic wave velocity variations. GU J. Sci., 24(1), 135-141.
10. Kudryavtsev, Y., Kleiman, J., Gushcha, O. et al. (2004) Ultrasonic technique and device for residual stress measurement. In: Proc. of X Inter. Cong. and Exposition on Experimental and Applied Mechanics, Costa Mesa, California USA, June 7-10, 2004, 1-7.
11. Hughes, D.S., Kelly, J.L. (1953) Second-order elastic deformation of solids. Phys. Rev., 92(5), 1145-1149. https://doi.org/10.1103/PhysRev.92.1145
12. Murnaghan, T.D. (1951) Finite deformation of an elastic solid. John Wiley, New York.
13. Guz, A.N., Makhort, F.G., Gushcha, O.I. (1977) Introduction to acoustoelasticity. Kyiv, Naukova Dumka [in Russian].
14. Kudryavtsev, Y., Kleiman, J., Gushcha, O. (2000) Ultrasonic measurement of residual stresses in welded railway bridge. In: Proc. of NDT Conf. on Structural Materials Technology, Atlantic City, NJ., February 28-March 3, 2000, 213-218.
15. Bate, S.K., Green, D., Buttle, D. (1997) A review of residual stress distributions in welded joints for the defect assessment of offshore structures: HSE Books, OTH 482.
16. Polezhayeva, H., Kang, J.-K., Lee, J.-H. et al. (2010) A study on residual stress distribution and relaxation in welded components. In: Proc. of the Twentieth Inter. Offshore and Polar Eng. Conf., Beijing, China, June 20-25, 2010, 282-289.
17. Kudryavtsev, Y., Kleiman, J., Polezhayeva, H. (2011) Ultrasonic measurement of residual stresses in welded elements of ship structure. In: Proc. of Integrating Simulation and Experimentation for Validation (ISEV) on Inter. Conf. on Advances in Experimental Mechanics, Edinburgh, Scotland, September 7-9, 2011. https://doi.org/10.4028/www.scientific.net/AMM.70.273
18. Gushcha, O.I. (1994) Non-destructive analysis of inhomogeneous fields of residual stresses in welded joints. Avtomatich. Svarka, 7-8, 3-5 [in Russian].
19. Gushcha, O.I., Makhort, F.G. (1995) Application of the acoustic method for determining residual stresses in welded structures. Technical Diagnostics and Non-Destructive Testing, 4, 8-15 [in Russian].
20. Ermolov, I.N., Razygraev, N.P., Shcherbinsky, V.G. (1978) Use of head-type acoustic waves for ultrasonic testing. Defectoscopy, 1 [in Russian].
21. Razygraev, N.P. (2003) Head waves in non-destructive testing of metal structures. World of Non-Destructive Testing, 22(4), December.
22. Viktorov, I.A. (1966) Physical foundations for the use of Rayleigh and Lamb ultrasonic waves in technology, Science. https://doi.org/10.1007/978-1-4899-5681-1

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