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- W2884999368 abstract "Lamb wave is widely acknowledged as one of the most encouraging tools for damage identification in plate structures, and relevant research has been conducted intensively. However Lamb wave modes have different wave structure, frequency dispersion and attenuation characteristics, which are sensitivity to different types of damages and it is difficult to solve such engineering problems by conventional techniques. Although the single pattern detection method has been researched by piezoelectric wafers, there is little research about FBG sensing detection under single-mode ultrasonic Lamb wave technique currently. So this paper puts forward a single-mode Lamb wave technique for crack detection based on Fiber Bragg Grating sensor, which is used to receive the waves in the plate. First of all, measuring principle of single-mode ultrasonic Lamb technique and demodulation principle of the FBG sensor are introduced. And simulation analysis in the acoustic field is devoted, whose results lay the foundation for the damage detection in the plate. Then, the experimental system is built by a single-mode Lamb wave excitation, and the feasibility of fiber Bragg grating sensors in single-mode excitation method is verified by experiments." @default.
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- W2884999368 date "2018-07-27" @default.
- W2884999368 modified "2023-09-27" @default.
- W2884999368 title "Damage Detection in a Plate Structure based on FBG sensing Technique under a Single-Mode Lamb Wave" @default.
- W2884999368 doi "https://doi.org/10.3991/ijoe.v14i07.8965" @default.
- W2884999368 hasPublicationYear "2018" @default.
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