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Design of optimal configuration for generating A0 Lamb mode in a composite plate using piezoceramic transducers.
It was shown that the dominant Lamb mode, obtained by use of dual-element transducers, was an appropriate mode for successfully detecting a damage in composites. Expand
Fatigue crack monitoring of riveted aluminium strap joints by Lamb wave analysis and acoustic emission measurement techniques
Abstract Statistics show that fatigue crack development comes first and foremost as a damage source in aerospace metallic structures. Currently, widespread methods are available to inspect theseExpand
Damage assessment in composites by Lamb waves and wavelet coefficients
A wavelet technique was used in an active system for the damage detection of aerospace composites. The active system was based on the generation and reception of Lamb waves by embedded piezoceramicExpand
Piezoelectric transducer embedded in a composite plate: Application to Lamb wave generation
The aim of this paper is to show that Lamb waves may be effectively generated using piezoelectric transducers embedded inside a composite plate, for nondestructive evaluation and health monitoringExpand
Health monitoring of a composite wingbox structure.
The ability of using the acoustic signature of an impact to detect possible damage and the damage emergence in the case of damaging impact was confirmed in active mode and the ability of the health monitoring system to monitor disbond growth was demonstrated. Expand
Radome health monitoring with Lamb waves: experimental approach
With intent to ensure health monitoring of foam core sandwich structures by a system based on ultrasonic methods, the use of Lamb waves is investigated. The propagation mechanisms are analyzed andExpand
Structural Health Monitoring Evaluation Tests
Integration of optical fibers and piezoelectric ceramics in composite materials
The concept of intelligent material/structure, largely debated for a few years, is generally applied to systems able to react to internal stimuli (selfcontrol) and external ones (adaptation toExpand
Damage Detection Using Stress and Ultrasonic Waves
The propagation of Lamb waves in multilayered plates: phase-velocity measurement
Owing to the dispersive nature and complexity of the Lamb waves generated in a composite plate, the measurement of the phase velocities by using classical methods is complicated. This paper describesExpand