کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
254264 503056 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage localization in laminated composite plates using mode shapes measured by pulsed TV holography
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Damage localization in laminated composite plates using mode shapes measured by pulsed TV holography
چکیده انگلیسی

Three methods for the damage localization of impact damage in laminated composite plates, based on their vibrational characteristics, are presented in this paper. These methods use double pulse TV holography with acoustic excitation for mode shapes acquisition and the differences in translations, rotations and curvatures. The rotations and curvatures are obtained by numerical differentiation of mode shapes translations using a differentiation/smoothing technique. The methods are applied to a carbon fiber reinforced epoxy rectangular plate, free in space, subjected to two cases of impact damage. It is shown that the method based on curvatures allows the localization of both cases of damage, which can be undetected by visual, X-ray or C-scan inspections. The best localizations are achieved by selecting and applying the method to the most changed mode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 76, Issue 3, November 2006, Pages 272–281
نویسندگان
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