Nondestructive Evaluation of Far-Side Corrosion Around a Rivet in a Multilayer Structure. Issue 1 (2nd January 2018)

• Record Type: Journal Article
• Authors: Kim, Jungmin; Le, Minhhuy; Lee, Jinyi; Kim, Sejin; Hwang, Young-Ha
• Is Part Of: Research in nondestructive evaluation. Volume 29:Issue 1(2018)
• Page Start: 18
• Page End: 37
• Publication Date: 2018-01-02
• Subjects: Aging aircraft -- far-side corrosion -- Hall sensor array -- intake -- nondestructive evaluation -- rivet; Nondestructive testing -- Periodicals; 620.112705
• DOI: 10.1080/09349847.2016.1213005
• Languages: English
• ISSNs: 0934-9847

Abstract

ABSTRACT: This paper presents a sensor system for inspection of far-side defects around rivets in a multilayer structure. The sensor system includes 64 InSb Hall sensors arrayed in 0.52-mm intervals, over a total length of 33.28 mm. The sensor system was tested on two flat specimens, which have two layers of an aluminum alloy, with and without far-side defects around rivets. The sensor system performance was estimated via both the receiver operating characteristic and the probability of detection (POD) curves. Furthermore, a quantitative evaluation of the surface area, depth, and volume of a defect having a POD greater than 90% was carried out.