Buckling mode transition in nonlinear strain gradient-based stability behavior of axial-thermal-electrical loaded FG piezoelectric cylindrical panels at microscale

Alshenawy, R.; Safaei, Babak; Sahmani, S.; Elmoghazy, Yasser; Al-Alwan, Ali; Nuwairan, Muneerah Al

doi:10.1016/j.enganabound.2022.04.010

Cited by 35 publications

(4 citation statements)

References 81 publications

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“…[34] Hence, eliminating these drawbacks and getting an effective conversion of energy hybrid/combined energy harvester is required. Several methods have been used to enhance the piezoelectric energy harvesters, such as loading criteria, [35,36] functionally graded designs, [37][38][39][40][41][42][43][44] and structural designs of the harvester. [45][46][47][48][49] There has been a rise in the application of auxetic structures for enhancing piezoelectric energy harvesters in recent years.…”

Section: Doi: 101002/ente202300893mentioning

confidence: 99%

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Gaur,

Saurabh,

Patel

2023

Energy Tech

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This study proposes a separate and combined (pyroelectric + piezoelectric) energy harvesting system using a bimetallic beam. Hybrid energy harvesting is achieved by waste thermal energy using thermal expansion mismatch of the bimetallic beam. In this regard, four types of design are proposed, along with various heating/cooling cycles. Auxetic layers in a bimetallic beam are used to enhance the power. The best‐performing design and heating/cooling cycle are considered for further power increment. Two models are simulated based on low (model C3) and high heat consumption (model C5). The load resistance, frequency, bimetallic beam and pyroelectric/piezoelectric layer thickness are varied and maximum power is obtained at 175 MΩ (C3), 75 MΩ (C5), 0.02 Hz (C3 and C5) and 0.4 mm (C3 and C5) as 20 μW (C3) and 40 μW(C5), respectively. The piezoelectric, pyroelectric and combined power variation is the effect of stress and temperature fluctuations on H‐PEH layer. Additionally, five well‐known higher pyroelectric/piezoelectric coefficient materials are studied and found that La‐NBT‐BT‐Ta gives the maximum power of 0.811 and 1.99 mW for combined (pyroelectric + piezoelectric) effect in low (C3) and high (C5) heat consumption model, respectively. The stress generated in both models is analyzed to look at practical feasibility.

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Section: Doi: 101002/ente202300893mentioning

confidence: 99%

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Gaur,

Saurabh,

Patel

2023

Energy Tech

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“…To account for the smallscale effects on the nonlinear dynamical instability behavior of piezoelectric micro-shells, Sun et al 71 developed a unified non-classical shell formulations based upon the elasticity theory of nonlocal strain gradient. Alshenawy et al 72 investigated the transition of buckling mode in the postbuckling properties of FG piezoelectric microsize panels incorporating various strain gradient size effects. Fan et al 73 developed a nonlocal strain gradient plate model for nonlinear time-dependent analysis of sinusoidal impulsive loaded nanoplate-type systems of harvesting energy.…”

Section: Introductionmentioning

confidence: 99%

On the roles of strain gradient tensors in quasi‐3D nonlinear dynamics of microplate‐type piezoelectric systems of energy harvesting under triangular mechanical actuation

Fan,

Sahmani,

Safaei

2024

Polymer Composites

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The small‐scale‐dependent nonlinear dynamical attributes of microplate‐type laminated piezoelectric systems of harvesting energy subjected to a triangular mechanical actuation are explored in the current exploration. The core of harvesting systems is supposed to be made of nanocomposites reinforced by randomly oriented carbon nanotubes (CNTs) having various degrees of agglomeration coated by piezoelectric layers. In this regard, the microplate‐type systems of harvesting energy are modeled via a quasi‐3D plate theory combined with the modified strain gradient elasticity in the presence of various microsize‐dependent strain gradient tensors. Thereafter, the solution of the developed coupled electromechanical size‐dependent nonlinear problem is obtained numerically by utilizing the meshless collocation approach employing incorporation of the polynomial and radial basis functions to remove any feasible singularity for the associated moment matrices. It comes to the conclusion that by elevating the quantity of CNTs disclosed within the clusters, the significance of the microsize dependency in the achieved voltage enhances from 22.06% to 22.73% toward the simply supported bridge‐type context, and from 33.00% to 33.92% toward the clamped bridge‐type context.Highlights Development of a microstructural‐dependent quasi‐3D shear flexible energy harvester model. Incorporating the roles of various strain gradient tensors in the nonlinear dynamics of microharvesters. Size‐dependent time‐histories of achieved voltage from triangular mechanical‐loaded microharvesters. Influence of the CNT reinforcement clustering on the nonlinear dynamic performance.

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“…Eghbali et al [68] extracted the strain gradient-based free transverse vibrational response of cracked piezoelectric Euler-Bernoulli nanobeams under electromechanical load. Rao et al [69], and Alshenawy et al [70,71] predicted the mode transition phenomenon in the microstructural-dependent nonlinear stability characteristics of functionally graded piezoelectric microshells. Yang et al [72] proposed a unified high-order beam model incorporating local and nonlocal strain gradient effects together with the surface stress type of size dependency for vibrational analysis of Euler-Bernoulli nanobeams.…”

Section: Introductionmentioning

confidence: 99%

Nonlocal couple stress-based quasi-3D nonlinear dynamics of agglomerated CNT-reinforced micro/nano-plates before and after bifurcation phenomenon

2023

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In present research exploration, the nonlinear dynamic stability characteristics of axially compressed nanocomposite plates at micro/nano-scale reinforced with randomly oriented carbon nanotubes (CNTs) are investigated within the both prebuckling and postbuckling regimes. To accomplish this examination, the nonlocal couple stress (NCS) continuum elasticity is incorporated to a quasi-3D plate theory which separates the plate deformation to the bending and shear parts considering simultaneously the transverse shear and normal displacements. In addition, a two-parameter homogenization scheme is utilized to obtain the effective characters of the randomly oriented CNT-reinforced nanocomposites. The NCS-based nonlinear differential equations of motion are discretized using the Kronecker tensor product together with the shifted Chebyshev-Gauss-Lobatto gridding pattern. Thereafter, the Galerkin technique together with the pseudo arc-length continuation method are employed to achieve the NCS-based frequency-load and nonlinear frequency ratio-deflection curves before and after of the bifurcation point. It is deduced that for a randomly oriented CNT-reinforced heterogeneous micro/nano-plate in which the most CNTs are located inside clusters, increasing the value of cluster volume fraction leads to increase a bit the significance of the softening and stiffing characters related to the nonlocal and couple stress tensors before the bifurcation phenomenon, but it causes to decrease them after the critical bifurcation point. Opposite patterns before and after the bifurcation phenomenon are predicted for the agglomeration in which the most CNTs are located outside clusters.

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Buckling mode transition in nonlinear strain gradient-based stability behavior of axial-thermal-electrical loaded FG piezoelectric cylindrical panels at microscale

Cited by 35 publications

References 81 publications

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

On the roles of strain gradient tensors in quasi‐3D nonlinear dynamics of microplate‐type piezoelectric systems of energy harvesting under triangular mechanical actuation

Nonlocal couple stress-based quasi-3D nonlinear dynamics of agglomerated CNT-reinforced micro/nano-plates before and after bifurcation phenomenon

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