Guided wave testing for bottom edges of rails with fastenings

Hayashi, Takahiro; Miyazaki, Yusuke; Kataoka, Keita; Takikawa, Mitsunobu; Abe, Tsukasa

doi:10.3728/icultrasonics.2007.vienna.1404_hayashi

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Modal Analysis For Guided Wave Inspection For a Rail1

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2008

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“…Authors carried out guided wave inspection for a bottom edge of a rail using the Rayleigh-like mode shown in Fig. 9 (9), (10) . Though bottom edges of a rail are fastened by metal fastenings in the vertical direction, the Rayleigh-like mode vibrating horizontally is not affected so much by the fastenings and propagated long-range.…”

Section: Modal Analysis For Guided Wave Inspection For a Railmentioning

confidence: 99%

Modal Analysis of Guided Waves and Its Application to Rail Inspection

Hayashi

Kataoka

Takikawa

2008

JMMP

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Dispersion curves and wave structures for a railway rail were obtained with a semi-analytical finite element method. Since one portion of many modes obtained by the calculation are suitable modes for guided wave inspection, which are non-dispersive long propagating modes, dominant modes were obtained from wave structure data for the three sections of rail cross-section, head, web and bottom and for x, y and z directions. As a result, suitable modes for guided wave inspection are limited to A 0 , SH and Rayleigh-like modes vibrating locally at these sections.

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Section: Modal Analysis For Guided Wave Inspection For a Railmentioning

confidence: 99%