Simulation Research on Defects Detection in Straight Pipes Using Guided Waves

Abstract:

Article Preview

Ultrasonic guided wave provides a suitable fast screening technique that enables the localization of the defects and offers a rough estimation of the defect size in pipes. Using the ANSYS, the entity model of a pipe with defects such as cracks and holes was established in this paper. Then the L(0,2) mode guided wave was excited by exerting symmetric displacement loads on an end of the pipe model. By analyzing the incident wave and the reflected wave of defects, the axial location and circumferential location of the defects can be reached. Besides, by fitting the data with some certain formulas, the relationships between reflection coefficient and the defects extent can be acquired. This new technique is of great significance in nondestructive detection.

Info:

Periodical:

Edited by:

Chunliang Zhang and Paul P. Lin

Pages:

526-530

Citation:

A. Q. Cui et al., "Simulation Research on Defects Detection in Straight Pipes Using Guided Waves", Applied Mechanics and Materials, Vols. 226-228, pp. 526-530, 2012

Online since:

November 2012

Export:

Price:

$38.00

[1] Lowe M, Alleyne D and Cawley P: Defect Detection in pipes Using Guided Waves, Ultrasonics (1998) No. 36, p.147.

DOI: https://doi.org/10.1016/s0041-624x(97)00038-3

[2] Siqueira M, Gatts C and Silva R: The Use of Ultrasonic Guided Waves and Wavelets Analysis in Pipe Inspection, Ultrasonics( 2004) No. 41, pp.785-797.

DOI: https://doi.org/10.1016/j.ultras.2004.02.013

[3] Anders Lovstad and Peter Cawley: The Reflection of the fundamental torsional guided wave from multiple circular holles in pipes, NDT&E International (2011) No. 44, p.553.

DOI: https://doi.org/10.1016/j.ndteint.2011.05.010

[4] Yong-Moo Cheong, Dong-Hoon Lee and Hyun-Kyu Jung: Ultrasonic guided wave parameters for detection of axial cracks in feeder pipes of PHWR nuclear power plants, Ultrasonics (2004) No. 42, p.883.

DOI: https://doi.org/10.1016/j.ultras.2004.01.073

[5] M.H.S. Siqueira, C.E.N. Gatts, R.R. da Silva and J.M.A. Rebello: The use of ultrasonic guided waves and wavelets analysis in pipe inspection, Ultrasonics (2004) No. 41, p.785.

DOI: https://doi.org/10.1016/j.ultras.2004.02.013

[6] D. N. Alleyne, M. J. S. Lowe and P. Cawley: The Reflection of guided waves from circumferential notches in pipes, Journal of Applied Mechanics( 1998) No. 65, p.635.

DOI: https://doi.org/10.1115/1.2789105