Study of the fundamental Lamb modes interaction with asymmetrical discontinuities

Benmeddour, Farouk; Grondel, Sébastien; Assaad, Jamal; Moulin, Emmanuel

doi:10.1016/j.ndteint.2008.01.004

Cited by 56 publications

(31 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The determination of the power coefficients from only the temporal normal or tangential displacement at a given location on the plate surface was presented in previous works [13][14][15]. Hence, the power reflection and transmission coefficients of the n th Lamb mode when the n th mode is driven for the symmetric or asymmetric step-down damage are:…”

Section: Determination Of the Power Coefficientsmentioning

confidence: 99%

“…If the rectangle window is used instead of the Hanning one, this limit is given by The numerical results [14] have shown that the study of the transmission region is very difficult and requires a careful analysis. The power transmission coefficients when the A 0 mode is launched are depicted on Figures 18a and b and show an agreement with the numerical results.…”

Section: Asymmetrical Notchesmentioning

confidence: 99%

“…Among the studied defects, one can cite holes [2], delaminations [3], vertical cracks [4], inclined cracks [5], surface defects [6], joints [7], thickness variations [8] and periodic grating [9]. Moreover, the special case of rectangular notches have been carried out by Alleyne et al [10], Lowe et al [11], Jin et al [12] and Benmeddour et al [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Generation of a Selected Lamb Mode by Piezoceramic Transducers: Application to Nondestructive Testing of Aeronautical Structures

Benmeddour¹,

Moulin²,

Assaad³

et al. 2013

Piezoelectric Materials and Devices - Practice and Applications

Self Cite

View full text Add to dashboard Cite

Section: Determination Of the Power Coefficientsmentioning

confidence: 99%

Section: Asymmetrical Notchesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Generation of a Selected Lamb Mode by Piezoceramic Transducers: Application to Nondestructive Testing of Aeronautical Structures

Benmeddour¹,

Moulin²,

Assaad³

et al. 2013

Piezoelectric Materials and Devices - Practice and Applications

Self Cite

View full text Add to dashboard Cite

“…The SHM energy harvesters were primarily used to monitor the health of the structure with classical SHM techniques such as the electro mechanical impedance technique [21], the Selective Lamb Mode Technique [22], Acoustic Emission Monitoring [23,24] and Lamb waves interaction [25,26]. In this study, the structure is excited by an electro mechanical shaker at its resonant frequencies.…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting Process Modelling of an Aeronautical Structural Health Monitoring System Using a Bond-Graph Approach

Sainthuile¹,

Grondel²,

Delebarre³

et al. 2013

AEROSPACE

Self Cite

View full text Add to dashboard Cite

Energy Harvesting is a pro mising solution for powering Structural Health Monitoring (SHM ) systems since various mechanical energy sources are generated by aircraft. Today, the main technique to harvest energy consists of using a specific conversion device to provide power to the SHM system. In this paper however, a novel technique to obtain a self-powered SHM system for aeronautical structures is proposed. This SHM system aims to have a double functionality: it will carry out classical SHM tasks using piezoelectric transducers bonded onto the aircraft structure and will also be fully autonomous since the same transducers will convert the mechanical v ibrations of the structure into electrical power. Using a bonded piezoelectric t ransducer to harvest energy will also bring wideband frequency energy harvesting capability. Th is autonomous system using a unique transducer being particularly innovative, the objective of this paper is to provide a complete Bond Graph model of the energy harvesting process in order to allow the optimisation of its performances. This approach is well-suited to monitor the power and energy transfer carried out during the process since it takes into account the interaction between mu ltiphysics systems, here the electrical and mechanical domains in terms of power and energy variables. Consequently, each part of the energy harvesting, i.e. the mechanical v ibration of the host structure, the vibration within the SHM energy harvester volume, the piezoelectric electro mechanical conversion and the terminal electric load have been modelled analytically using this Bond Graph approach. Then, each submodel has been verified with a baseline Fin ite Element model. Good agreements have been found and it has been possible to carry out an estimat ion of the power harvested by the SHM energy harvester for a given mechanical excitation using this innovative complete analytical Bond Graph model.

show abstract

“…In another work, Duquenne [17] has implemented a hybrid method to generate and receive Lamb waves using a glued-surface transducer in a transient regime. F. El Youbi [18] has developed a sophisticated signal [19,20] has studied the interaction of Lamb waves with different type of damage by modelling the diffraction phenomena, and M. Baouahi [21] has considered the 3-D aspect of the Lamb waves generation.…”

mentioning

confidence: 99%

Application of Piezoelectric Transducers in Structural Health Monitoring Techniques

Leyla¹,

Moulin²,

Assaad³

et al. 2011

Advances in Piezoelectric Transducers

Self Cite

View full text Add to dashboard Cite

Study of the fundamental Lamb modes interaction with asymmetrical discontinuities

Cited by 56 publications

References 14 publications

Generation of a Selected Lamb Mode by Piezoceramic Transducers: Application to Nondestructive Testing of Aeronautical Structures

Generation of a Selected Lamb Mode by Piezoceramic Transducers: Application to Nondestructive Testing of Aeronautical Structures

Energy Harvesting Process Modelling of an Aeronautical Structural Health Monitoring System Using a Bond-Graph Approach

Application of Piezoelectric Transducers in Structural Health Monitoring Techniques

Contact Info

Product

Resources

About