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摘要:
Fibre reinforced polymer (FRP) composite laminates are now commonly usedin many structural applications, especially in the aerospace industry, where margins ofsafety are kept low in order to minimise weight. Timely detection and assessment ofdamage (in particular delaminations) in composite laminates are therefore critical, as theycan cause loss of structural integrity affecting the safe operation of the composite structures.The current trend is towards implementation of structural health monitoring (SHM)systems which can monitor the structures in situ without down time. In this paper, first, thecurrent available SHM techniques for delamination detection in FRP composites arebriefly reviewed, including acoustic emission, fibre optic sensors, Lamb wave-,impedance- and vibration-based methods. Among different vibration-based methods,frequency monitoring is the simplest to implement, requiring only single pointmeasurement, and is relatively accurate and reliable, thus it becomes the main focus ofpresent paper. A comprehensive review of frequency-based vibration monitoring isconducted in terms of the various aspects of delamination identification in FRPs throughfrequency shifts, including review of theoretical models for free vibration of delaminatedFRP beams, survey of finite element modelling of delaminated composite structures,summary of experimental modal analyses on FRP composites with delaminations, andinverse algorithms for frequency-based delamination assessment. This paper aims to helpthe readers to get an overview of the available SHM techniques for monitoring the integrityof FRP composites, with a special emphasis on delamination assessment throughfrequency-based vibration monitoring.
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篇名 Delamination Identification for FRP Composites with Emphasis on Frequency-Based Vibration Monitoring-A Review
来源期刊 结构耐久性与健康监测(英文) 学科 工学
关键词 Structural health monitoring DELAMINATION detection FRP compositestructures vibration-based method INVERSE algorithms
年,卷(期) 2018,(4) 所属期刊栏目
研究方向 页码范围 213-256
页数 44页 分类号 TB3
字数 语种
DOI
五维指标
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研究主题发展历程
节点文献
Structural
health
monitoring
DELAMINATION
detection
FRP
compositestructures
vibration-based
method
INVERSE
algorithms
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研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
结构耐久性与健康监测(英文)
季刊
1930-2983
江苏省南京市浦口区东大路2号东大科技园A
出版文献量(篇)
39
总下载数(次)
0
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