کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
821681 1469562 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An NDT technique for composite structures using visualized Lamb-wave propagation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
An NDT technique for composite structures using visualized Lamb-wave propagation
چکیده انگلیسی

This study proposes a non-destructive testing (NDT) technique that visualizes the propagation of ultrasonic waves in solids, including composite laminates. This technique provides a moving diagram of traveling waves through the use of a pulsed laser that scans a test piece. A non-contact scan by the pulsed laser for ultrasound generation with reception at a fixed point enables us to inspect an arbitrarily shaped object and also facilitates easy operation of the measurement system. We applied the proposed technique to the inspection of CFRP laminates and successfully visualized the wave scattering due to impact-induced delamination as well as the propagation of the S0 and A0 Lamb modes. We also addressed disbonding detection in a composite skin-stringer structure and concluded that the reliable detection of damage and the advantages of the proposed technique are applicable to inspections of composite structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 67, Issues 15–16, December 2007, Pages 3202–3208
نویسندگان
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