Wave Manipulation in Intelligent Metamaterials: Recent Progress and Prospects

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: March 11, 2024

Abstract Metamaterials (MMs), which include phononic crystals (PCs) as a particular type, exhibit anomalous wave propagation properties through artificial design of topologies or lattice forms unit‐cells. Recent advancements in MMs signify an ascendant research trend, providing promising ideas and means for unprecedented properties. The imperative on‐demand, real‐time active control underscores the significance tunable manipulation acoustic/elastic waves, promoting development MMs. Furthermore, versatility intelligent materials their ongoing innovation contribute significantly to emergence diverse This comprehensive survey provides overview recent current trends interdisciplinary field with electro‐/magneto‐mechanical couplings. primary objective review is emphasize significant progress agile waves coupled MMs, followed by in‐depth exploration metasurfaces, topological non‐Hermitian parity‐time symmetric systems, odd elastic spatiotemporally modulated Special emphasis given multi‐field coupling effects. concludes summary outlines potential prospects, offering timely informative guide future studies on actively PCs practical engineering applications.

Language: Английский

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Obliquely propagating incident SH waves in periodic hard-magnetic soft laminates

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: 287, P. 109945 - 109945

Published: Jan. 11, 2025

Language: Английский

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Propagation of solitary waves in origami-inspired metamaterials

Journal of the Mechanics and Physics of Solids, Journal Year: 2024, Volume and Issue: 187, P. 105626 - 105626

Published: March 23, 2024

We propose a design strategy for creating origami-like mechanical metamaterials with diverse non-linear properties and capable of remote actuation. The proposed triangulated cylindrical origami (TCO)-inspired enable the highly desirable strain-softening/hardening snap-through behaviors via multi-material deformable hinge design. Moreover, we couple these novel TCO origami-inspired transformative ability hard-magnetic active materials, allowing untethered shape- property-actuation in developed metamaterials. develop mathematical modeling framework metamaterials, building on approximating hinges as combination longitudinal rotational springs. validate accuracy approach by comparing analytically predicted compressive response unit cell structure corresponding numerical experimental results. Using framework, investigate magnetic field-induced large deformation superimposed solitary wave propagation metamaterial system. show that allows us to tune key characteristics enabled waves, including their characteristic width amplitude. readily manufacturable systems paves path practical engineering applications. Our studies also underscore potential magneto-mechanical interaction reconfigurable superior elastic properties.

Language: Английский

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A solid-shell model of hard-magnetic soft materials

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 271, P. 109129 - 109129

Published: Feb. 27, 2024

Language: Английский

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Propagation of the Fundamental Lamb Modes in Strain Stiffened Hard-Magnetic Soft Plates

Journal of Applied Mechanics, Journal Year: 2024, Volume and Issue: 91(6)

Published: Feb. 19, 2024

Abstract This study focuses on investigating hard-magnetic soft materials, characterized by magnetoactive polymers containing magnetically polarized particles as fillers. The research utilizes the Gent model of hyperelasticity to analyze propagation Lamb waves in a induced deformed compressible plate. In this investigation, we explore both finite deformations and incremental wave nonlinear materials. main objective is formulate elastic tensor relevant equations within framework Lagrangian space. To assess dispersion characteristics guided wave, introduces discusses an extension semi-analytical element (SAFE) method. Using numerical approach, further examines effects magnetic flux densities its orientation with respect direction fundamental modes. starts examining limiting case neo-Hookean material explain such inherent dependencies. These dependencies are then emphasized including strain-stiffening effect that describes. findings reveal presence threshold applied flux, beyond which Gent-type may undergo snap-through instability, resulting changes symmetric mode.

Language: Английский

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Topology optimization of hard-magnetic soft phononic structures for wide magnetically tunable band gaps

Journal of Applied Mechanics, Journal Year: 2024, Volume and Issue: 91(10)

Published: July 9, 2024

Abstract Hard-magnetic soft materials, which exhibit finite deformation under magnetic loading, have emerged as a promising class of active materials for the development phononic structures with tunable elastic wave band gap characteristics. In this paper, we present gradient-based topology optimization framework designing hard-magnetic materials-based two-phase wide and magnetically anti-plane shear gaps. The incompressible Gent hyperelastic material model, along ideal is used to characterize constitutive behavior structure phases. To extract dispersion curves, an in-house element model in conjunction Bloch’s theorem employed. method moving asymptotes iteratively update design variables obtain optimal distribution phases within unit cell. Analytical sensitivity analysis performed evaluate gradient maximization function respect each one variables. Numerical results show that optimized width comparison standard central circular inclusion, demonstrating effectiveness proposed numerical framework. presented study, derived conclusions, can serve valuable guide futuristic manipulators.

Language: Английский

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Bidirectional elastic modulator via terfenol-D in phononic crystal Mach–Zehnder interferometer

Journal of Materials Science, Journal Year: 2024, Volume and Issue: 59(15), P. 6403 - 6414

Published: April 1, 2024

Language: Английский

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Dynamic Modeling and Analysis of Soft Dielectric Elastomer Balloon Actuator with Polymer Chains Crosslinks, Entanglements and Finite Extensibility

International Journal of Applied Mechanics, Journal Year: 2024, Volume and Issue: 16(03)

Published: Jan. 8, 2024

Soft dielectric elastomers (SDEs) represent a category of intelligent electroactive materials utilized in electro-mechanical actuation technology. The dynamic performance these during is notably affected by intrinsic factors like crosslinks, entanglements and the limited extensibility polymer chains. In this paper, we provide theoretical framework for modeling behavior balloon actuator made up soft elastomer. To account inherent characteristics chain networks, employ physics-based nonaffine material model proposed Davidson Goulbourne. governing equation motion established using Euler–Lagrange’s conservative systems. reported then to explore transient response, stability, periodicity resonance properties elastomer (DEB) varying levels finite parameters. assess stability nonlinear vibrations exhibited DEB actuator, present Poincaré maps phase-plane plots. results demonstrate that changes density lead transitions between quasi-periodic aperiodic vibrations. These findings an essential initial step toward design production actuators with diverse applications future technologies.

Language: Английский

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Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Acoustics, Journal Year: 2024, Volume and Issue: 6(2), P. 298 - 330

Published: March 26, 2024

Acoustic metamaterials (AMs) composed of periodic artificial structures have extraordinary sound wave manipulation capabilities compared with traditional acoustic materials, and they attracted widespread research attention. The insulation performance thin-walled commonly used in engineering applications restricted space, for example, vehicles’ body structures, the latest studies on metamaterial are comprehensively discussed this paper. First, definition math law introduced, alongside primary methods testing specimens. Secondly, main summarized classified, including membrane-type, plate-type, smart-material-type metamaterials, boundaries, temperature effects, as well composite combined structures. Finally, status, challenges, trends summarized. It was found that combining advantages various panel optimization considering lightweight proper wide frequency band single evaluator has potential to improve full range. Relative review results provide a comprehensive reference design application.

Language: Английский

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Geometrically exact 3D arbitrarily curved rod theory for dynamic analysis: Application to predicting the motion of hard-magnetic soft robotic arm

Applied Mathematical Modelling, Journal Year: 2024, Volume and Issue: 134, P. 71 - 96

Published: June 12, 2024

Language: Английский

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