Research Papers: Pipeline Systems

Damage Detection Through Pipe Bends

[+] Author and Article Information
Bouko Vogelaar

Department of Mechanical Engineering,
Eindhoven University of Technology,
Groene Loper 15,
Eindhoven 5600 MB, The Netherlands

Michael Golombok

Department of Mechanical Engineering,
Eindhoven University of Technology,
Groene Loper 15,
Eindhoven 5600 MB, The Netherlands;
Shell Global Solutions International B.V.,
Kessler Park 1,
Rijswijk 2288 GS, The Netherlands
e-mail: michael.golombok@shell.com

1Corresponding author.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received June 2, 2016; final manuscript received June 9, 2017; published online August 1, 2017. Assoc. Editor: Hardayal S. Mehta.

J. Pressure Vessel Technol 139(5), 051701 (Aug 01, 2017) (7 pages) Paper No: PVT-16-1091; doi: 10.1115/1.4037120 History: Received June 02, 2016; Revised June 09, 2017

Axial pipeline defects are detectable from torsional guided wave reflections through 90 deg elbows. This paper demonstrates that detection of localized damage in carbon steel pipes with a so-called standard long and very long radius elbow is possible using a single permanently installed source–receiver pair. We use dispersion imaging to determine why this is not possible in a short radius elbow pipe. Although the remote damage is detected in a standard short radius bend pipe, there is not enough signal to detect localized damage. Since pipeline bends are normally of at least standard long radius, the acoustical behavior is similar to that previously determined in straight pipes. The reflective method can thus be applied fruitfully to monitor structural health beyond industrial pipeline bends.

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Cawley, P. , and Alleyne, D. N. , 1996, “ The Use of Lamb Waves for the Long Range Inspection of Large Structures,” Ultrasonics, 34(2–5), pp. 287–290. [CrossRef]
Vogelaar, B. , Golombok, M. , and Campman, X. , 2016, “ Pipe Attrition Acoustic Locater (PAAL) From Multi-Mode Dispersion Analysis,” Ultrasonics, 68, pp. 80–88. [CrossRef] [PubMed]
Vogelaar, B. , and Golombok, M. , 2016, “ Quantification and Localization of Internal Pipe Damage,” Mech. Syst. Signal Process., 78, pp. 107–117. [CrossRef]
Rose, J. L. , Zhang, L. , Avioli, M. J. , and Mudge, P. J. , 2005, “ A Natural Focusing Low Frequency Guided Wave Experiment for the Detection of Defects Beyond Elbows,” ASME J. Pressure Vessel Technol., 127(3), pp. 310–316. [CrossRef]
Felix, S. , and Pagneux, V. , 2002, “ Multimodal Analysis of Acoustic Propagation in Three-Dimensional Bends,” Wave Motion, 36(2), pp. 157–168. [CrossRef]
Demma, A. , Cawley, P. , Lowe, M. J. S. , and Pavlakovic, B. , 2005, “ The Effects of Bends on the Propagation of Guided Waves in Pipes,” ASME J. Pressure Vessel Technol., 127(3), pp. 328–335. [CrossRef]
Sanderson, R. M. , Hutchins, D. A. , Billson, D. R. , and Mudge, P. J. , 2013, “ The Investigation of Guided Wave Propagation Around a Pipe Bend Using an Analytical Modeling Approach,” J. Acoust. Soc. Am., 133(3), pp. 1404–1414. [CrossRef] [PubMed]
Zhou, W. J. , and Ichchou, M. N. , 2010, “ Wave Propagation in Mechanical Waveguide With Curved Members Using Wave Finite Element Solution,” Comput. Methods Appl. Mech. Eng., 199(33–36), pp. 2099–2109. [CrossRef]
Hayashi, T. , Kawashima, K. , Sun, Z. , and Rose, J. L. , 2005, “ Guided Wave Propagation Mechanics Across a Pipe Elbow,” ASME J. Pressure Vessel Technol., 127(3), pp. 322–327. [CrossRef]
Rudd, K. E. , Leonard, K. R. , Bingham, J. P. , and Hinders, M. K. , 2007, “ Simulation of Guided Waves in Complex Piping Geometries Using the Elastodynamic Finite Integration Technique,” J. Acoust. Soc. Am., 121(3), pp. 1449–1458. [CrossRef] [PubMed]
Wang, Y. , Hao, H. , Zhu, X. , and Ou, J. , 2012, “ Spectral Element Modelling of Wave Propagation With Boundary and Structural Discontinuity Reflections,” Adv. Struct. Eng., 15(5), pp. 855–870. [CrossRef]
Luo, G.-S. , Tan, J.-P. , Wang, L. , and Xu, Y. , 2015, “ Defects Detection in Typical Positions of Bend Pipes Using Low-Frequency Ultrasonic Guided Wave,” J. Cent. South Univ., 22(10), pp. 3860–3867. [CrossRef]
Verma, B. , Mishra, T. K. , Balasubramaniam, K. , and Rajagopal, P. , 2014, “ Interaction of Low-Frequency Axisymmetric Ultrasonic Guided Waves With Bends in Pipes of Arbitrary Bend Angle and General Bend Radius,” Ultrasonics, 54(3), pp. 801–808. [CrossRef] [PubMed]
Ni, J. , Zhou, S. , Zhang, P. , and Li, Y. , 2016, “ Effect of Pipe Bend Configuration on Guided Waves-Based Defects Detection: An Experimental Study,” ASME J. Pressure Vessel Technol., 138(4), p. 021203.
Nishino, H. , Tanaka, T. , Katashima, S. , and Yoshida, K. , 2011, “ Experimental Investigation of Mode Conversions of the T(0, 1) Mode Guided Wave Propagating in an Elbow Pipe,” Jpn. J. Appl. Phys., 50(4), p. 046601. [CrossRef]
Nishino, H. , Masuda, S. , Mizobuchi, Y. , Asano, T. , and Yoshida, K. , 2010, “ Long-Range Testing of Welded Elbow Pipe Using the T(0, 1) Mode Ultrasonic Guided Wave,” Jpn. J. Appl. Phys., 49(11), p. 116602. [CrossRef]
Jones, R. E. , Simonetti, F. , Lowe, M. J. S. , and Bradley, I. P. , 2012, “ The Effect of Bends on the Long-Range Microwave Inspection of Thermally Insulated Pipelines for the Detection of Water,” J. Nondestr. Eval., 31(2), pp. 117–127. [CrossRef]
Abbasi, K. , Motlagh, N. H. , Neamatollahi, M. R. , and Hashizume, H. , 2009, “ Detection of Axial Crack in the Bend Region of a Pipe by High Frequency Electromagnetic Waves,” Int. J. Pressure Vessels Piping, 86(11), pp. 764–768. [CrossRef]
Vogelaar, B. , and Golombok, M. , 2016, “ Dispersion and Attenuation by Transmission, Reflection, and Mode Conversion in Welded Pipes,” Appl. Acoust., 110, pp. 1–8. [CrossRef]
Demma, A. , Cawley, P. , Lowe, M. , and Roosenbrand, A. , 2003, “ The Reflection of the Fundamental Torsional Mode From Cracks and Notches in Pipes,” J. Acoust. Soc. Am., 114(2), pp. 611–625. [CrossRef] [PubMed]


Grahic Jump Location
Fig. 1

(a) Schematic side view the bend radius ratio β = r/D of a 90 deg elbow. r is the bend radius, D is the pipe diameter, and w is the pipe wall thickness. (b) Cross section of the pipe with external damage. d is the radial damage depth, s is the circumferential extent, and φ is the angular coordinate of the removed area.

Grahic Jump Location
Fig. 2

Top view (a) and photograph (b) of the experimental setup. S is source and R is receiver.

Grahic Jump Location
Fig. 3

Measurements through three different bend radius ratios β = 1.0 (a), 1.5 (b), and 2.5 (c). Left-hand column: time sections, middle column: dispersion image of the direct wave, and right-hand column: dispersion image of the reflected wave. The bar is normalized to the maximum absolute amplitude.

Grahic Jump Location
Fig. 4

Fraction of T(0, 1) that survives for the purposes of damage detection around bends of various magnitudes

Grahic Jump Location
Fig. 5

Damage detection through three different bend radius ratios β = 1.0 (a), 1.5 (b), and 2.5 (c). Left-hand column: reference reflection from weld Rweld′ (model validation), middle column: pipe end reflection Rend′ (damage detection), and right-hand column: damage reflection Rdam′ (damage location). Vertical axes denote the difference in the reflection coefficient of the damaged pipe and the undamaged pipe. Horizontal axes denote the fractional axial extent of damage.




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