کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
727489 892758 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage identification in composite materials using ultrasonic based Lamb wave method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Damage identification in composite materials using ultrasonic based Lamb wave method
چکیده انگلیسی

The paper presents an ultrasonic based Lamb waves propagation method for identifying and measuring the damage location in a material for SHM. The present work determines the experimental and analytical effects of various parameters on the sensitivity of damage detection and a methodology is proposed for estimating and measuring the location of damage in the test specimens. An experimental setup is used for generating Ao Lamb waves by calibrating ultrasonic pulse generation for optimal value of the parameters. The experiment is performed on two carbon fiber reinforced plastic bars in both undamaged and damaged state, where the two damaged states are (1) having a cut partway through the bar, perpendicular to the long axis of the bar and (2) having a circular hole. The Lamb wave propagation parameters are calibrated using the ultrasonic pulse generator test setup and the method was compared with direct measured values of ultrasonic instrument.


► Damage identification and its measurement have been conducted on CFRP.
► Lamb wave dispersion theory for composite laminates has been used.
► Ultrasonic pulse generator setup has been used to generate Lamb waves.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 46, Issue 2, February 2013, Pages 904–912
نویسندگان
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