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1999
Conference Paper
Titel
Guided Shear Horizontal (SH-) Waves - Examples of the Practical Use of Their Benefits for New NDE-Applications
Abstract
It has been shown, that SH-guided waves in plates and pipe walls can be reliably used for new NDE-applications of high practical relevance: fast and economic corrosion mapping, sensitive laser weld inspection. The physical properties of SH-waves offer a couple of benefits compared with quided waves polarized in the plane of incidence. The couplant free excitation of these waves by EMATs is a further big advantage for the practical application. Furthermore the selection of the most appropriate modes can be easiliy performed via the excitation frequency.