Applications and limitations for using ACPD in crack depth measurements

Alternating current potential drop (ACPD) testing has been established as a viable means of measuring crack depth. This paper presents experiences in using a commercially available version of this tool to generate results under flaw constraints encountered in industrial usage. Sample geometries with...

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Hauptverfasser:	Utrata, David, Enyart, Darrel A.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Cracks Industrial applications Voltage drop Wall thickness
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creator	Utrata, David Enyart, Darrel A.
description	Alternating current potential drop (ACPD) testing has been established as a viable means of measuring crack depth. This paper presents experiences in using a commercially available version of this tool to generate results under flaw constraints encountered in industrial usage. Sample geometries with simulated cracks were studied to examine crack depth as a percentage of through-wall thickness and with varying width of contact area adjacent to cracks. A variety of real cracks were also examined, illustrating cracking conditions that may be adequately measured using ACPD, as well as situations where crack depth may be under- or oversized.
doi_str_mv	10.1063/1.4940543
format	Conference Proceeding
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source	AIP Journals Complete
subjects	Cracks Industrial applications Voltage drop Wall thickness
title	Applications and limitations for using ACPD in crack depth measurements
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