کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1467037 990086 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact damage detection in composite laminates using nonlinear acoustics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Impact damage detection in composite laminates using nonlinear acoustics
چکیده انگلیسی

The paper demonstrates the application of nonlinear acoustics for impact damage detection in composite laminates. A composite plate is monitored for damage resulting from a low-velocity impact. The plate is instrumented with bonded low-profile piezoceramic transducers. A high-frequency acoustic wave is introduced to one transducer and picked up by a different transducer. A low-frequency flexural modal excitation is introduced to the plate at the same time using an electromagnetic shaker. The damage induced by impact is exhibited in a power spectrum of the acoustic response by a pattern of sidebands around the main acoustic harmonic. The results show that the amplitude of sidebands is related to the severity of damage. The study investigates also the effect of boundary conditions on the results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 41, Issue 9, September 2010, Pages 1084–1092
نویسندگان
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