Computational Analysis of Smart Magneto-Electro-Elastic Materials and Structures: Review and Classification

Mahesh, Vinyas

doi:10.1007/s11831-020-09406-4

Cited by 86 publications

(16 citation statements)

References 424 publications

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“…Meanwhile, numerous kinematic models and computational techniques have been proposed to accurately capture energy interactions and structural characteristics of MEE structures. 37 Several studies suggest that improved computational accuracy can be attained using higher-order shear deformation theories in contrast to the classical laminated theory and first-order shear deformation theory. 38 Also, the complications of using shear correction factors can be eliminated.…”

Section: Introductionmentioning

confidence: 99%

Effect of carbon nanotube-reinforced magneto-electro-elastic facings on the pyrocoupled nonlinear deflection of viscoelastic sandwich skew plates in thermal environment

Mahesh

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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This work presents a finite-element-based numerical formulation to evaluate the nonlinear deflections of magneto-electro-elastic sandwich skew plates with a viscoelastic core and functionally graded carbon nanotube-reinforced magneto-electro-elastic face sheets. Meanwhile, the proposed formulation accommodates the geometrical skewness as well. The magneto-electro-elastic sandwich skew plate is operated in the thermal environment and subjected to various multiphysics loads, including electric and magnetic loads. The viscoelastic core is modelled via the complex modulus approach. Two different forms of viscoelastic cores, such as Dyad 606 and EC 2216, are considered in this study. Also, different thickness configurations of core and facing arrangements are taken into account. The plate kinematics is presumed through higher-order shear deformation theory, and von Karman's nonlinear strain displacement relations are incorporated. The global equations of motion are arrived at through the total potential energy principle and solved via the direct iterative method. Special attention is paid to assessing the influence of pyroeffects, coupling fields and electromagnetic boundary conditions on the nonlinear deflections of magneto-electro-elastic sandwich plates working in the thermal environment and subjected to electromagnetic loads, which is the first of its kind. Also, parametric studies dealing with the skew angles, carbon nanotube distributions and volume fractions, thickness ratio, and aspect ratio have been discussed. The results of this work are believed to be unique and serve as a guide for the design engineers towards developing sophisticated smart structures for various engineering applications.

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Section: Introductionmentioning

confidence: 99%

Effect of carbon nanotube-reinforced magneto-electro-elastic facings on the pyrocoupled nonlinear deflection of viscoelastic sandwich skew plates in thermal environment

Mahesh

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Magneto-electro-elastic (MEE) materials are a special class of smart materials that consist of distinctive piezoelectric and piezomagnetic phases arranged in a layered configuration. 23 These materials exhibit excellent coupling between the electric, magnetic, and elastic fields within them and are widely used in energy conversion, sensing, and actuating applications. Recent studies have shown that this class of materials can exercise efficient vibrational control and transmission through effective manipulation of the inherent magnetic, electric and elastic fields.…”

Section: Introductionmentioning

confidence: 99%

Simulation-based assessment of coupled frequency response of magneto-electro-elastic auxetic multifunctional structures subjected to various electromagnetic circuits

Mahesh

Harursampath

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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This article deals with the modeling of magneto-electro-elastic auxetic structures and developing a methodology in COMSOL Multiphysics® to assess the free vibration response of such structures when subjected to various electromagnetic circuit conditions. The triple energy interaction between elastic, magnetic, and electric fields are established in the COMSOL Multiphysics® using structural mechanics and electromagnetic modules. The multiphase magneto-electro-elastic material with different percentages of piezoelectric and piezomagnetic phases are used as the material. In the solid mechanics module, the piezoelectric and piezomagnetic materials were created in stress-charge and stress-magnetization forms, respectively. The electric and magnetic fields are defined in COMSOL Multiphysics® through electromagnetic equations. Further, the customized controlled meshing constituted of free tetrahedral and triangular elements is adapted to trade-off between the accuracy and the computational expenses. The eigenvalue analysis is performed to obtain the natural frequencies of the MEE re-entrant auxetic structures. Also, the efficiency of smart auxetic structures over conventional honeycomb structures is presented throughout the manuscript. In addition, the discrepancy in the natural frequencies of the structures considering coupled and uncoupled state is also illustrated. It is believed that the modeling procedure and its outcomes serve as benchmark solutions for further design and analysis of smart auxetic magneto-electro-elastic structures.

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“…And they have been widely applied to electrodes, gas sensing, catalysis, magento-electro-elastic materials, and other fields. [21][22][23][24][25][26][27][28][29][30] In this work, we have designed a p-type a-Fe 2 O 3 hexagonal nanosheets (NSs) sensor for aniline detection and adopted a low-cost solvothermal and annealing methods to obtain the sample. The synthesized sample exhibits unusual p-type conductivity rather than typical n-type conductivity and the reason of unusual performance is investigated and discussed specifically.…”

Section: Introductionmentioning

confidence: 99%

P-type α-Fe₂O₃ hexagonal nanosheets: Synthesis and aniline-sensing performance

Zhu

Zhang

Yang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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The unique α-Fe2O3 hexagonal nanosheets have been successfully prepared through a facile solvothermal method with subsequent calcining process. The as-synthesized α-Fe2O3 sample exhibits p-type conductive performance. The gas sensitivities of the as-fabricated Fe2O3 nanosheets-based sensor are comprehensively studied and show good gas-sensing performance toward aniline. Furthermore, the aniline-sensing mechanism is investigated and the origin of the p-type conductivities is also discussed.

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Computational Analysis of Smart Magneto-Electro-Elastic Materials and Structures: Review and Classification

Cited by 86 publications

References 424 publications

Effect of carbon nanotube-reinforced magneto-electro-elastic facings on the pyrocoupled nonlinear deflection of viscoelastic sandwich skew plates in thermal environment

Effect of carbon nanotube-reinforced magneto-electro-elastic facings on the pyrocoupled nonlinear deflection of viscoelastic sandwich skew plates in thermal environment

Simulation-based assessment of coupled frequency response of magneto-electro-elastic auxetic multifunctional structures subjected to various electromagnetic circuits

P-type α-Fe₂O₃ hexagonal nanosheets: Synthesis and aniline-sensing performance

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Computational Analysis of Smart Magneto-Electro-Elastic Materials and Structures: Review and Classification

Cited by 86 publications

References 424 publications

Effect of carbon nanotube-reinforced magneto-electro-elastic facings on the pyrocoupled nonlinear deflection of viscoelastic sandwich skew plates in thermal environment

Effect of carbon nanotube-reinforced magneto-electro-elastic facings on the pyrocoupled nonlinear deflection of viscoelastic sandwich skew plates in thermal environment

Simulation-based assessment of coupled frequency response of magneto-electro-elastic auxetic multifunctional structures subjected to various electromagnetic circuits

P-type α-Fe2O3 hexagonal nanosheets: Synthesis and aniline-sensing performance

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P-type α-Fe₂O₃ hexagonal nanosheets: Synthesis and aniline-sensing performance