A fiber optic Doppler sensor and its application in debonding detection for composite structures.
A fiber optic Doppler sensor and its application in debonding detection for composite structures.
复制标题
光纤多普勒传感器及其在复合材料结构脱粘检测中的应用
DOI：
10.3390/s100605975
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Shirai T
中科院分区：
文献类型：
--
作者：
Li F;Murayama H;Kageyama K;Meng G;Ohsawa I;Shirai T
脱粘是纤维增强复合材料结构中最重要的损伤形式之一。这项工作致力于碳纤维增强塑料（CFRP）结构中搭接接头脱粘损伤检测，该方法基于使用螺旋形光纤多普勒（FOD）传感器捕获的引导超声波信号。本研究提出并比较了基于氦氖激光器和红外半导体激光器两种激光源的干涉仪，用于测量 FOD 传感器的多普勒频移。 FOD 传感器的位置根据搭接接头的机械特性进行优化。 FOD 传感器随后用于检测在 CFRP 结构中传播的引导超声波。通过利用信号处理方法，可以揭示导波信号的特征。结果表明，搭接接头脱粘导致导波信号中首包到达时间延迟，可作为脱粘损伤检测和损伤程度估计的特征。
Debonding is one of the most important damage forms in fiber-reinforced composite structures. This work was devoted to the debonding damage detection of lap splice joints in carbon fiber reinforced plastic (CFRP) structures, which is based on guided ultrasonic wave signals captured by using fiber optic Doppler (FOD) sensor with spiral shape. Interferometers based on two types of laser sources, namely the He-Ne laser and the infrared semiconductor laser, are proposed and compared in this study for the purpose of measuring Doppler frequency shift of the FOD sensor. Locations of the FOD sensors are optimized based on mechanical characteristics of lap splice joint. The FOD sensors are subsequently used to detect the guided ultrasonic waves propagating in the CFRP structures. By taking advantage of signal processing approaches, features of the guided wave signals can be revealed. The results demonstrate that debonding in the lap splice joint results in arrival time delay of the first package in the guided wave signals, which can be the characteristic for debonding damage inspection and damage extent estimation.
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DOI：
10.4028/www.scientific.net/msf.440-441.195
发表时间：
2003-01-01
期刊：
MODERN PRACTICE IN STRESS AND VIBRATION ANALYSIS
影响因子：
--
作者：
Lee, BC;Manson, G;Staszewski, WJ
通讯作者：
Staszewski, WJ
DOI：
10.1177/1045389x05050106
发表时间：
2005-04-01
影响因子：
2.7
作者：
Giurgiutiu, V
通讯作者：
Giurgiutiu, V
影响因子：
9.1
作者：
Diamanti, K;Soutis, C;Hodgkinson, JM
通讯作者：
Hodgkinson, JM
Lamb 波分析的最佳母小波选择
DOI：
10.1177/1045389x09102562
发表时间：
2009-07-01
影响因子：
2.7
作者：
Li, Fucai;Meng, Guang;Ye, Lin
通讯作者：
Ye, Lin
影响因子：
4.1
作者：
Tsuda, Hiroshi;Lee, Jung-Ryul;Guan, Yisheng
通讯作者：
Guan, Yisheng