کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7120487 | 1461459 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
B-scan ultrasonic testing of rivets in multilayer structures based on short-time Fourier transform analysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
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چکیده انگلیسی
This paper proposes an ultrasonic testing system for inspection of pitting corrosion cracks in rivets of multilayer structures. The inspection operates in B-scan mode with an ultrasonic probe passing over the rivet head. The ultrasonic signal is analyzed in the frequency domain using the short-time Fourier transform. To analyze and evaluate the effectiveness of the system, B-scan data obtained by scanning a rivet head within ±1â¯mm from the rivet head center will be used and an algorithm to evaluate the existence of cracks in the rivet using B-scan data will be proposed. To evaluate the performance of the system, its probability of detection (POD) is analyzed. With the data obtained at a scanning speed of 6â¯mm/s, the system could detect artificial pitting corrosion cracks with areas of 47.28% of the rivet body cross-section area with 90/95% POD.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 128, November 2018, Pages 495-503
Journal: Measurement - Volume 128, November 2018, Pages 495-503
نویسندگان
Minhhuy Le, Jungmin Kim, Sejin Kim, Jinyi Lee,