Applications and limitations for using ACPD in crack depth measurements | Zendy

David Utrata | Zendy; Darrel A. Enyart | Zendy

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Applications and limitations for using ACPD in crack depth measurements

Author(s) -

David Utrata,

Darrel A. Enyart

Publication year - 2016

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.4940543

Subject(s) - acpd , cracking , materials science , voltage drop , geology , composite material , structural engineering , current (fluid) , engineering , chemistry , biochemistry , glutamate receptor , receptor , oceanography , ampa receptor

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.

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