Application of Lamb waves for the characterization of composite plates

Agostini, Valentina; Baboux, Jean-C.; Delsanto, Pier Paolo; Monnier, Thomas; Olivero, D.

doi:10.1063/1.1302041

Cited by 15 publications

(17 citation statements)

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“…The ability of guided waves to detect defects much smaller than the wavelength is widely reported in the literature. Application examples include [115,116,117,118]. The study in [119] shows that the wavelength of So (12 mm) and A0 (5.7 mm) Lamb wave modes exhibit almost identical amplitudes of their transmission ratios across a 0.5 mm deep notch in a 3 mm thick steel plate.…”

Section: Excitation Signalsmentioning

confidence: 98%

“…The LISA is computationally efficient and accurate to model complex wave propagation and diffusion problems in complex media [183,184,185,186]. LISA applications for Lamb wave propagation include examples in metallic [121,187] and composite [117,118] structures. A novel approach with the LISA framework is the application of the spring model which substitutes the problem of wave propagation with the vibration problem of tensorial springs, as presented in [181].…”

Section: Wave Propagation Modellingmentioning

confidence: 99%

“…Lamb wave examples in metallic structures include interactions with: a hole in plates using the FE analysis [197], surface defects in plates using a combined FE and modal expansion method [198], damage slots in circular pipes using the FE analysis [199] and damage slots in aluminium plates using LISA [187,200,201]. Research studies related to composite materials include Lamb wave interactions with: delaminations in composite plates using the FE analysis [119,112] and and a hole in a com-posite plate using LISA [117,118]. All these studies confirm that propagation of Lamb waves and wave interactions with damage are complex problems.…”

Section: Wave Propagation Modellingmentioning

confidence: 99%

See 2 more Smart Citations

Structural Health Monitoring Using Guided Ultrasonic Waves

Staszewski

2004

Advances in Smart Technologies in Structural Engineering

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Section: Excitation Signalsmentioning

confidence: 98%

Section: Wave Propagation Modellingmentioning

confidence: 99%

Section: Wave Propagation Modellingmentioning

confidence: 99%

See 1 more Smart Citation

Structural Health Monitoring Using Guided Ultrasonic Waves

Staszewski

2004

Advances in Smart Technologies in Structural Engineering

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“…Furthermore, damage interaction and identification [13] also addressed in 2-D isotropic plates. It was further used to study isotropic structures with more complex geometries [14] and wave propagation through the thickness of a constant orthotropic layer plate structure [15]. The orthotropic plates were comprised of a single layer [16] or plies having the same properties and were discretized with uniform cell sizes [14].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric coupled LISA for guided wave generation and propagation

Nadella

Cesnik

2013

SPIE Proceedings

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Recently there has been an increased utilization of composite structures in aerospace and other industries due to their superior physical attributes compared to traditional metallic structures. This has spurred the need for structural health monitoring (SHM) systems to support structural integrity. Guided wave (GW) based techniques for health monitoring have shown to be reliable and promising. The local interaction simulation approach (LISA), a finite difference based numerical method, has been proven to be efficient in modeling GW propagation in isotropic and composite plate structures. Piezoelectric actuators are traditionally used to generate GW in structures. In this work, iterative equations which form the basis of the LISA method are derived for a generic orthotropic laminated structure with a piezoelectric actuator on top. The piezoelectric actuator is modeled by considering the coupled electromechanical equations.

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“…Iteration equations then may be obtained directly from heuristic considerations. In short, LISA allows one to perform virtual experiments, in which the propagation of the wave through the whole specimen is followed for as long as desired, even in the case of strongly anisotropic or heterogeneous media [20], [21].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Lamb wave propagation for the characterization of complex structures

Agostini

Delsanto

Genesio

et al. 2003

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Reliable numerical simulation techniques represent a very valuable tool for analysis. For this purpose we investigated the applicability of the local interaction simulation approach (LISA) to the study of the propagation of Lamb waves in complex structures. The LISA allows very fast and flexible simulations, especially in conjunction with parallel processing, and it is particularly useful for complex (heterogeneous, anisotropic, attenuative, and/or nonlinear) media.We present simulations performed on a glass fiber reinforced plate, initially undamaged and then with a hole passing through its thickness (passing-by hole). In order to give a validation of the method, the results are compared with experimental data. Then we analyze the interaction of Lamb waves with notches, delaminations, and complex structures. In the first case the discontinuity due to a notch generates mode conversion, which may be used to predict the defect shape and size. In the case of a single delamination, the most striking "signature" is a time-shift delay, which may be observed in the temporal evolution of the signal recorded by a receiver. We also present some results obtained on a geometrically complex structure. Due to the inherent discontinuities, a wealth of propagation mechanisms are observed, which can be exploited for the purpose of quantitative nondestructive evaluation (NDE).

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Application of Lamb waves for the characterization of composite plates

Cited by 15 publications

References 0 publications

Structural Health Monitoring Using Guided Ultrasonic Waves

Structural Health Monitoring Using Guided Ultrasonic Waves

Piezoelectric coupled LISA for guided wave generation and propagation

Simulation of Lamb wave propagation for the characterization of complex structures

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