Fully-coupled electro-magneto-elastic behavior of unidirectional multiphased composites via finite-volume homogenization

Chen, Qiang; Chen, Weiqiu; Wang, Guannan

doi:10.1016/j.mechmat.2020.103553

Cited by 22 publications

(5 citation statements)

References 36 publications

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“…The hierarchy of buckling provides the option to customize the buckling phenomenon to achieve the functional requirements specific to certain scenarios. From a practical perspective, such buckling structures have been widely applied in electronic devices, including wearable electronics [8,9], flexible displays [10], energy devices, sensors [11], resonators, and electromagnetic wave absorbers [12][13][14][15]. By adopting a suitable buckling structure, the functionality of the devices can be further enhanced.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical buckling of elastic fiber under transverse confinement

Zhou,

Liu,

et al. 2024

Front. Phys.

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Hierarchical buckling is a novel phenomenon observed in elastic fibers subjected to transverse confinement; however, the deformation mechanisms and modal transitions of this unique phenomenon remain to be elucidated. This paper investigates the hierarchical buckling of elastic fibers with elliptical (circular) cross-sections under transverse confinement through analytical derivations and numerical simulations. Various magnitudes of hierarchical buckling of fibers are observed with the variation of the controlled elastic matrix stiffness. An analytical solution is first derived for the fiber’s buckling phenomenon, and the hierarchical buckling is accomplished through the superposition of buckling at various modes. The theoretical results are validated against the finite element simulations with good agreement. It is demonstrated from the parametric results that the hierarchical buckling phenomenon is primarily influenced by the stiffness of the external transverse confinement (matrix), which is defined as a dimensionless parameter. It is thus illustrated from the computational results that the buckling of elastic fibers within a solid or fluid matrix can be controlled and customized. The present work provides theoretical guidance for the application of elastic fibers in stretchable conductor fibers and flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Hierarchical buckling of elastic fiber under transverse confinement

Zhou,

Liu,

et al. 2024

Front. Phys.

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“…Conversely, the damage degree of a bridge structure can be evaluated by the dynamic characteristics of the bridge. The conventional approach for measuring the dynamic response of a bridge involves installing dynamic sensors on the bridge structure [5,6]. The damage of a bridge will lead to the change of its dynamic characteristics [7].…”

Section: Introductionmentioning

confidence: 99%

Identification of Dynamic Vibration Parameters of Partial Interaction Composite Beam Bridges Using Moving Vehicle

Wu,

Chen,

Chen

et al. 2023

Applied Sciences

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The vibration response of a partial composite beam bridge under the influence of moving vehicular loads was investigated. Due to the coupling effect between the vehicle and the bridge, the vibration information of the vehicle encompassed the vibration information of the bridge. Consequently, the dynamic response of the vehicle could be utilized to extract the dynamic information of the composite beam. A moving mass-spring-damping system and composite beam elements considering interfacial slips were used for the interaction vibration of a vehicle-composite bridge. A finite element program for the interaction vibration analysis of the vehicle-composite beam bridge was developed. The program was used to extract the vibration information of the composite beam bridge by analyzing the vehicle displacement, velocity, and acceleration in the interaction vibration of the beam and the vehicle. Taking the Hangzhou Jiubao Bridge as the engineering background, the influences of structural parameters such as shear stiffness of connections, prestress magnitude, as well as vehicle parameters, including vehicle stiffness, damping, and mass, on frequency identification were analyzed. Furthermore, the influences of road roughness, disturbance force generated by vehicle random vibrations, and interference signals generated by signal transmission on frequency identification of the bridge were investigated.

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“…Second, an accurate modeling of metamaterials is achieved in the framework of strain gradient theory [16,26,28,35,38,40,45,89]. Indeed, the behaviors of metamaterials depend on the morphology of microstructures [23,43,53,54] and show peculiar behaviors, such as size effects [3,[90][91][92] and band gaps [76,80], which are not captured by the classical Cauchy continuum. Exotic material behaviors may be governed by internal or boundary layers of higher strain gradients [51].…”

Section: Introductionmentioning

confidence: 99%

Verification of strain gradient elasticity computation by analytical solutions

et al. 2021

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As there are different computational methods for simulating problems in generalized mechanics, we present simple applications and their closed-form solutions for verifying a numerical implementation. For such a benchmark, we utilize these analytical solutions and examine three-dimensional numerical simulations by the finite element method (FEM) using IsoGeometric Analysis (IGA) with the aid of open source codes, called tIGAr, developed within the FEniCS platform. A study for the so-called wedge forces and double tractions help to comprehend their roles in the displacement solution as well as examine the significance by comparing to the closed form solutions for given boundary conditions. It is found that numerical results are in a good agreement with the analytical solutions if wedge forces and double tractions are considered. It is also presented how the wedge forces become necessary in order to maintain equilibrium in strain gradient materials.

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Fully-coupled electro-magneto-elastic behavior of unidirectional multiphased composites via finite-volume homogenization

Cited by 22 publications

References 36 publications

Hierarchical buckling of elastic fiber under transverse confinement

Hierarchical buckling of elastic fiber under transverse confinement

Identification of Dynamic Vibration Parameters of Partial Interaction Composite Beam Bridges Using Moving Vehicle

Verification of strain gradient elasticity computation by analytical solutions

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