Analysis of different boundary types on wave velocity in bedded piezo-structure with flexoelectric effect

Nirwal, Sonal; Sahu, Sanjeev A.; Singhal, Abhinav; Baroi, Juhi

doi:10.1016/j.compositesb.2019.03.014

Cited by 46 publications

(8 citation statements)

References 35 publications

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“…The actuator network consists of eight PZT wafers (7 mm diameter and 0.2 mm thickness, Steminc SM412 with PZT-5A material, piezoelectric constant d 33 450 × 10 −12 m/V, electromechanical coupling coefficient k 31 0.35, https://www.steminc.com/PZT/en/). They are bonded on the plate surface using M-Bond 200 adhesive as a very thin layer (Chaudhary et al, 2018; Giurgiutiu, 2005; Sohn and Lee, 2009) to minimize influence on wave generation (Nirwal et al, 2019; Singhal et al, 2019b). For proof of concept study, the PZTs are arranged uniformly along a circle with its center being defined as the coordinate origin (45° angular spacing between actuators).…”

Section: Detection Setup and Acquisition Of Dispersion Curvesmentioning

confidence: 99%

Lamb wave imaging with actuator network for damage quantification in aluminum plate structures

2020

Journal of Intelligent Material Systems and Structures

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Lamb waves have been widely used for damage detection on plate-like structures. However, there are still considerable interests on quantifying damage with complex profile. In this article, quantification of complex damage in plate-like structures using a network of actuators and time-space Lamb wavefield is investigated. The actuator network inspection system is implemented with multiple PZT transducers for Lamb wave actuation in round robin pattern and scanning laser Doppler vibrometer for wavefield sensing. The PZT network is arranged in a way that the target area is fully enclosed and Lamb waves come to the damage from all directions. Waves induced by the damage are subsequently obtained through frequency-wavenumber filtering, using the experimentally acquired dispersion curves presented in the paper. The filtered waves from all wave actuators are then used to generate a synthetic image of the damage being inspected. Two cases of complex damage are evaluated on aluminum plates, mass loss with triangular profile and mass addition with a three-letter cluster profile. Our results show that the damages are not only detected but also their profiles are clearly outlined in the images. We believe the subject methods provide improved evaluation of damage profile for Lamb wavefield based damage quantification.

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Section: Detection Setup and Acquisition Of Dispersion Curvesmentioning

confidence: 99%

Lamb wave imaging with actuator network for damage quantification in aluminum plate structures

2020

Journal of Intelligent Material Systems and Structures

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“…Among the three types of waves, namely, the body torsional waves, the Rayleigh waves, and Love waves, the body waves decay quickly over distance so the total area of severe damage caused by the body waves is much smaller than the Rayleigh and the Love waves, which are surface waves. [31][32][33][34][35] Between the Rayleigh waves that reside in thick soil and the Love waves that reside in shallow soil above bed rock, the Rayleigh waves are more often encountered than Love waves because in geology thick soil cites are more common than shallow soil. Furthermore, once the means to attenuate Rayleigh waves are established, they could serve as a reference for the Love waves.…”

Section: Journal Of Applied Physicsmentioning

confidence: 99%

Folded sheet resonators that aim at low frequency attenuation of surface elastic waves in solids

Yang

et al. 2020

Journal of Applied Physics

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“…Chaudhary et al (2017Chaudhary et al ( , 2018Chaudhary et al ( , 2019aChaudhary et al ( , 2019bChaudhary et al ( , 2019c investigate the stress/pre-stressed analysis of different types of piezoelectric composite structures with different imperfect interfaces under moving loading conditions. Nirwal et al (2019) studied the wave velocity in bedded piezoelectric material-based structure considering the flexoelectric effect for various boundary types. Sahu et al (2019aSahu et al ( , 2019b investigate the polarized shear wave propagation in the FGP multilayer based sandwich composite plate between corrugated piezoelectric layer medium.…”

Section: Introductionmentioning

confidence: 99%

Static and vibration response analysis of sigmoid function-based functionally graded piezoelectric non-uniform porous plate

Kumar

Harsha

2022

Journal of Intelligent Material Systems and Structures

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This paper has done static and vibration response analysis of the sigmoid functionally graded piezoelectric (S-FGP) tapered plate under thermo-electric load with different even/uneven type porosity. The governing equations of plate motion are derived using first-order shear deformation theory (FSDT) based displacement fields with Hamilton’s principle, and material property distribution is considered as per sigmoid law in the thickness direction of the FGP plate. The obtained governing equations are solved using the higher-order finite element method (FEM) with nine noded interpolation functions with 63 degrees of freedom (DOFs) per element. Convergence and the comparison study have been performed to exhibit the efficacy of the present study. It is observed that parameters like the non-dimensional center deflection, non-dimensional stress, and non-dimensional frequency are decreased as the material gradient index increases. The positive and negative types of electric loading have considerable effects on the pre/post type buckling configuration of the porous S-FGP tapered plate under thermal effect. The present analysis results can be used in the various smart structure application made of porous FGP materials.

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Analysis of different boundary types on wave velocity in bedded piezo-structure with flexoelectric effect

Cited by 46 publications

References 35 publications

Lamb wave imaging with actuator network for damage quantification in aluminum plate structures

Lamb wave imaging with actuator network for damage quantification in aluminum plate structures

Folded sheet resonators that aim at low frequency attenuation of surface elastic waves in solids

Static and vibration response analysis of sigmoid function-based functionally graded piezoelectric non-uniform porous plate

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