Benchmark problems for defect size and shape determination in eddy-current nondestructive evaluation

Autor:	S. K. Burke, D. J. Harrison, L. D. Jones
Rok vydání:	1996
Předmět:	Engineering business.industry Mechanical Engineering Acoustics Function (mathematics) Inverse problem law.invention Mechanics of Materials law Electromagnetic coil Nondestructive testing Solid mechanics Benchmark (computing) Eddy current business Electrical impedance Algorithm
Zdroj:	Journal of Nondestructive Evaluation. 15:21-34
ISSN:	1573-4862 0195-9298
DOI:	10.1007/bf00733823
Popis:	A set of four benchmark problems is presented for verification of theoretical calculations of defect size and shape in eddy-current nondestructive evaluation. The benchmark problems are based on careful measurements of the change in coil impedance as a function of frequency for a circular air-cored coil which is scanned along the axis of an electrodischarge machined slot in a thick aluminum alloy plate. Slots of (i) semi-elliptical, and (ii) double-peaked profiles are considered. Deviations from ideal coil behavior are identified and corrected so that the final impedance data and experimental parameters can be directly used to verify theoretical inversion algorithms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41f893cc78f7b5b23870b6a1954b39c4 https://doi.org/10.1007/bf00733823 Zobrazit plný text záznamu Full text from SpringerLink