Research laser scanning damage detection method in f-k domain for laminate composite material

IF 2.3 3区 材料科学 Q3 MATERIALS SCIENCE, COMPOSITES
Ziping Wang, Hangrui Cui, Yue Fei, Bingqian Li, Rahim Gorgin
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引用次数: 0

Abstract

The use of composite plate structures has become increasingly prevalent in industries such as civil engineering, aerospace, high-speed rail, automotive, and wind power. However, the propagation of ultrasonic Lamb waves in these structures is subject to multi-modal and frequency dispersion effects, which, coupled with the complicated anisotropic propagation mechanism of composite materials, makes it challenging to extract damage scatter signals without a health signal as a reference. In this study, we apply the frequency-wavenumber ( f- k) domain filter wavefront modal method to carbon fiber reinforced polymer (CFRP) materials and use a three-dimensional (3D) window function to achieve different modalities and their corresponding damage reflection signals in the absence of a reference dispersion curve. Single modal damage imaging is achieved using a common source method (CSM) by laser vibration scanning experiment. To effectively extract single modalities in laminate material damage detection, a 3D filter window function was constructed. Considering the skew angle correction, it can effectively remove the direct wave signal, so as to realize the imaging of the damage.
层压复合材料 f-k 域激光扫描损伤检测方法研究
在土木工程、航空航天、高速铁路、汽车和风力发电等行业中,复合板结构的使用越来越普遍。然而,超声波 Lamb 波在这些结构中的传播受多模态和频散效应的影响,再加上复合材料复杂的各向异性传播机理,使得在没有健康信号作为参考的情况下提取损伤散射信号变得十分困难。在本研究中,我们将频率-波数(f- k)域滤波波前模态法应用于碳纤维增强聚合物(CFRP)材料,并使用三维(3D)窗口函数在没有参考色散曲线的情况下实现不同模态及其相应的损伤反射信号。通过激光振动扫描实验,使用共源方法(CSM)实现了单模态损伤成像。为了在层压材料损伤检测中有效提取单模态,构建了三维滤波窗口函数。考虑到偏斜角修正,它能有效去除直波信号,从而实现损伤成像。
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来源期刊
Journal of Composite Materials
Journal of Composite Materials 工程技术-材料科学:复合
CiteScore
5.40
自引率
6.90%
发文量
274
审稿时长
6.8 months
期刊介绍: Consistently ranked in the top 10 of the Thomson Scientific JCR, the Journal of Composite Materials publishes peer reviewed, original research papers from internationally renowned composite materials specialists from industry, universities and research organizations, featuring new advances in materials, processing, design, analysis, testing, performance and applications. This journal is a member of the Committee on Publication Ethics (COPE).
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