Semi-analytical hybrid approach for the simulation of layered waveguide with a partially debonded piezoelectric structure

Golub, Mikhail V.; Shpak, Alisa N.

doi:10.1016/j.apm.2018.08.019

Cited by 32 publications

(24 citation statements)

References 31 publications

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“…An application of the hybrid approach scheme is explained in detail in Golub and Shpak (2019) for the case of the PWAS attached to a layered structure without delamination. The proposed method suggests solving the problem in the frequency domain first and employment of the inverse Laplace transform to obtain a time domain solution afterwards.…”

Section: Hybrid Approachmentioning

confidence: 99%

“…Matrices A ij and B ik are composed in accordance with the FDSEM, see more details in Golub and Shpak (2019). To satisfy boundary conditions (6) taking into account equation (11), the equations (12), (14) are substituted to equation (11) and afterwards the collocation method is applied to the solution at the nodal points.…”

Section: Hybrid Approachmentioning

confidence: 99%

“…A combination of the boundary integral equation method (BIEM) and the frequency domain spectral element method (FDSEM; Shi et al, 2016), addressed as a hybrid approach (Golub and Shpak, 2019), is employed in this article. The semi-analytical BIEM is an efficient tool for simulation of wave propagation in an elongated structure with cracks as was shown in Glushkov and Glushkova (1996); Boström (2003); Eremin et al (2019); Golub and Doroshenko (2019).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of a delamination on Lamb wave excitation by a nearby piezoelectric transducer

Shpak

Golub

Mueller

et al. 2020

Journal of Intelligent Material Systems and Structures

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This article presents the results of theoretical and experimental investigations of characteristic changes of Lamb wave excitation and scattering by a strip-like horizontal delamination in a layered elastic waveguide for Lamb waves induced by a piezoelectric wafer active sensor. The boundary integral equation method is used to describe wave propagation in an infinite layered waveguide with a delamination, while the frequency domain spectral element method is employed to model the dynamic behaviour of the piezoelectric wafer active sensor, which allows to simulate debonding between the piezoelectric wafer active sensor and the waveguide. Experimental investigations of the dynamic interaction of the piezoelectric wafer active sensor with a layered plate containing a horizontal delamination is conducted for several damage scenarios, showing a good agreement with the results obtained using the developed mathematical model. The obtained mathematical model is employed to analyse alteration of the piezo-induced Lamb waves including modes’ decomposition due to delamination. The conversion and/or conservation of the Lamb waves on account of a delamination is investigated. The electro-mechanical impedance of the piezoelectric transducer and the stress intensity factors of a delamination are analysed in dependence on the delamination location.

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Section: Hybrid Approachmentioning

confidence: 99%

Section: Hybrid Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of a delamination on Lamb wave excitation by a nearby piezoelectric transducer

Shpak

Golub

Mueller

et al. 2020

Journal of Intelligent Material Systems and Structures

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“…In this study, the standard finite element method (FEM) and an extension of the semi-analytical hybrid approach (SAHA) [ 17 , 30 ] were used for two-dimensional mathematical models. The standard FEM was applied for the simulation of the transient problems, whereas the SAHA, which was in a good agreement with the FEM, was used to compute eigenfrequencies and to analyze mode conversion/reflection by obstacles.…”

Section: Introductionmentioning

confidence: 99%

Lamb Wave Scattering Analysis for Interface Damage Detection between a Surface-Mounted Block and Elastic Plate

Golub

Shpak

Mueller

et al. 2021

Sensors

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Since stringers are often applied in engineering constructions to improve thin-walled structures’ strength, methods for damage detection at the joints between the stringer and the thin-walled structure are necessary. A 2D mathematical model was employed to simulate Lamb wave excitation and sensing via rectangular piezoelectric-wafer active transducers mounted on the surface of an elastic plate with rectangular surface-bonded obstacles (stiffeners) with interface defects. The results of a 2D simulation using the finite element method and the semi-analytical hybrid approach were validated experimentally using laser Doppler vibrometry for fully bonded and semi-debonded rectangular obstacles. A numerical analysis of fundamental Lamb wave scattering via rectangular stiffeners in different bonding states is presented. Two kinds of interfacial defects between the stiffener and the plate are considered: the partial degradation of the adhesive at the interface and an open crack. Damage indices calculated using the data obtained from a sensor are analyzed numerically. The choice of an input impulse function applied at the piezoelectric actuator is discussed from the perspective of the development of guided-wave-based structural health monitoring techniques for damage detection.

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“…In recent years, some researchers have conducted in-depth research on Lamb waves in such structures. Golub et al [14] utilized the frequency domain spectral element method to discretize the finite-sized surface mounted piezoelectric structure, and used the semi-analytical boundary integral method to evaluate the wave phenomenon in the host laminate structure. The dynamic interaction of perfectly bonded or damaged piezoelectric structures with layered elastic waveguides was simulated.…”

Section: Introductionmentioning

confidence: 99%

Impact Location on a Fan-Ring Shaped High-Stiffened Panel Using Adaptive Energy Compensation Threshold Filtering Method

Wang

Rui

et al. 2019

Applied Sciences

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The increase in the number of space debris is a serious threat to the safe operation of in-orbit spacecraft. The propagation law of the impact signal in the stiffened panel of the spacecraft’s sealed bulkhead is very complicated, and there is less research on the impact source location in the high-stiffened panel. In this paper, an adaptive energy compensation threshold filtering (AECTF) method based on acoustic emission is proposed, which can realize large-scale, fast and accurate locating of the impact source on the stiffened panel with less resource consumption. The influence law of the stiffeners on the lamb wave is analyzed by finite element simulation, and the Lamb wave energy factor curve is obtained. The correctness of the simulation is verified by the locating experiment on the impact point. The results show that the proposed AECTF method has better adaptability and can correctly locate the impact points in complicated locations. By selecting the appropriate frequency band to filter the signal, the locating accuracy and stability can be improved. When the frequency band is 100–200 kHz, the locating result is optimal, the average absolute error is 7.0 mm, the average relative error is 0.86%, and the error standard deviation is 3.5 mm. This study will generate fresh insight into the impact location technology of high-stiffened panel and provide a reference for the in-orbit spacecraft health monitoring system.

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Semi-analytical hybrid approach for the simulation of layered waveguide with a partially debonded piezoelectric structure

Cited by 32 publications

References 31 publications

Influence of a delamination on Lamb wave excitation by a nearby piezoelectric transducer

Influence of a delamination on Lamb wave excitation by a nearby piezoelectric transducer

Lamb Wave Scattering Analysis for Interface Damage Detection between a Surface-Mounted Block and Elastic Plate

Impact Location on a Fan-Ring Shaped High-Stiffened Panel Using Adaptive Energy Compensation Threshold Filtering Method

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