Modulated angle beam ultrasonic spectroscopy for evaluation of imperfect interfaces and adhesive bonds

被引：41
作者：
Rokhlin, SI
Wang, L
Xie, B
Yakovlev, VA
Adler, L
机构：
[1] Ohio State Univ, Edison Joining Technol Ctr, Nondestruct Evaluat Program, Columbus, OH 43221 USA
[2] Adler Consultants, Columbus, OH 43212 USA
来源：
ULTRASONICS | 2004年 / 42卷 / 1-9期
关键词：
nonlinear interfaces; modulation measurements; adhesive bonds;
D O I：
10.1016/j.ultras.2003.12.025
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
An experimental method incorporating high frequency pulsed angle beam ultrasonic measurements modulated by low frequency vibrations of a bonded structure is described. This method uses parametric/nonlinear mixing between high and low frequencies to characterize adhesive degradation. It is demonstrated that good quality (undamaged) bonds exhibit little dependence of ultrasonic signature on the overlay of low frequency vibration loads; however, environmentally degraded or imperfect bonds exhibit strong modulation of the resonance frequency of the ultrasonic signal reflected from the bond. The results are interpreted using a model for normal and oblique wave interaction with two nonlinear interfaces separated by an adhesive layer under quasi-static stress modulation. (C) 2003 Elsevier B.V. All rights reserved.
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收藏
页码：1037 / 1047
页数：11
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