Detection and monitoring of delamination in composite laminates using ultrasonic guided wave
Detection and monitoring of delamination in composite laminates using ultrasonic guided wave
复制标题
使用超声波导波检测和监测复合材料层压板的分层
DOI：
10.1016/j.compstruct.2019.111161
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发表时间：
2019-10
影响因子：
6.3
通讯作者：
Ying Luo
中科院分区：
文献类型：
--
作者：
Guoqi Zhao;Ben Wang;Tao Wang;Wenfeng Hao;Ying Luo
在这项工作中，利用超声导波对复合材料双悬臂梁的分层进行检测和监测。制备了复合材料DCB，搭建了基于超声导波的损伤检测实验平台。利用压电式传感器(PZT)获得了复合材料DCB的损伤响应信号。对信号进行希尔伯特变换(HT)、傅立叶变换(FFT)和小波变换(CWT)。提取了有效线性导波参数和非线性导波参数来表征脱层长度。实验结果表明，高次谐波的出现时间和持续时间与分层长度有关。在响应信号中发现了高次谐波，这是由于导波与分层区域闭合微裂纹之间的非线性接触造成的。验证了复合材料层合结构中的主要谐波源是非线性声接触。
In is work, the delamination of composite double cantilever beams (DCBs) was detected and monitored using ultrasonic guided wave. The composite DCBs were prepared, and the experimental platform for damage detection based on ultrasonic guided wave was built up. The damage response signal was obtained from the composite DCBs by piezoelectric sensor (PZT). The signal was processed by Hilbert transform (HT), Fourier transform (FFT) and wavelet transform (CWT). The effective linear guided wave parameters and nonlinear guided wave parameters are extracted to characterize the delamination length. The experimental results show that the occurrence time and duration of high-order harmonics are related to the length of delamination. High-order harmonics are found in the response signal, which is due to the non-linear contact between the guided wave and the closed microcracks in the delamination region. It verifies that the main source of harmonics in the laminated composite structure is the non-linear acoustic contact.
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影响因子：
4.2
作者：
Gao, Huidong;Ali, Syed;Lopez, Borja
通讯作者：
Lopez, Borja
影响因子：
4.7
作者：
C. Schaal;H. Samajder;H. Baid;A. Mal
通讯作者：
C. Schaal;H. Samajder;H. Baid;A. Mal
影响因子：
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影响因子：
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Reza Soleimanpour;C. Ng
影响因子：
6.3
作者：
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通讯作者：
Gopalakrishnan, S.