Conference

MEASUREMENT OF THE FATIGUE CRACK DEPTHS IN ALUMINIUM PLATES

A. L. Ribeiro; H. G. Ramos; T. Rocha — 2015

Key information

Authors:

A. L. Ribeiro (Artur Fernando Delgado Lopes Ribeiro); H. G. Ramos (Helena Maria Dos Santos Geirinhas Ramos); D. Pasadas (Dario Jerónimo Loureiro Pasadas); T. Rocha (Tiago Jorge Rocha)

Published in

July 2015

Abstract

This work estimates the depth of cracks using the eddy current method. After detection of one crack the material surface is scanned. The eddy currents are excited in the material using a special planar coil to produce a spatially invariant primary field. The secondary field, due to the eddy currents is measured using a high sensitivity giant magneto-resistor sensor. It is experimentally demonstrated that the maximum amplitude of the field perturbation due to the presence of a defect correlates with the depth of the crack.

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Publication language (ISO code)

eng - English

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