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

---

Magnetically tunable longitudinal wave band gaps in hard-magnetic soft laminates

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 249, P. 108262 - 108262

Published: March 3, 2023

Language: Английский

---

Tunable anti-plane wave bandgaps in 2D periodic hard-magnetic soft composites

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 261, P. 108686 - 108686

Published: Aug. 23, 2023

Language: Английский

---

Viscoelastic Effects on the Nonlinear Oscillations of Hard-Magnetic Soft Actuators

Journal of Applied Mechanics, Journal Year: 2023, Volume and Issue: 90(6)

Published: Feb. 3, 2023

Abstract The hard-magnetic soft materials (HMSMs) belong to the magnetoactive category of smart polymers that undergo large actuation strain under an externally applied magnetic field and can sustain a high residual flux density. Because these remarkable characteristics, HMSMs are promising candidates for remotely controlled actuators. behavior actuators (HMSAs) is considerably affected by viscoelastic material HMSMs. In this article, we aim at developing analytical dynamic model typical planar HMSAs concerning viscoelasticity A Zener rheological in conjunction with incompressible neo-Hookean hyperelasticity Rayleigh dissipation function employed defining constitutive HMSA. governing equations motion deduced implementing nonconservative form Euler–Lagrange equation. established utilized providing preliminary insights pertaining effect on nonlinear oscillations actuator. phase–plane portraits, Poincaré maps, time–history response plotted investigate stability, resonant behavior, periodicity results inferences reported here should provide initial step toward design development modern diverse futuristic applications medical engineering fields.

Language: Английский

---

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

---

Hard magnetics and soft materials—a synergy

Smart Materials and Structures, Journal Year: 2024, Volume and Issue: 33(4), P. 043001 - 043001

Published: Feb. 21, 2024

Abstract Hard-magnetic soft materials (hMSMs) are smart composites that consist of a mechanically polymer matrix impregnated with hard magnetic filler particles. This dual-phase composition renders them exceptional magneto-mechanical properties allow to undergo large reversible deformations under the influence external fields. Over last decade, hMSMs have found extensive applications in robotics, adaptive structures, and biomedical devices. However, despite their widespread utility, they pose considerable challenges fabrication characterization owing multi-phase nature, miniature length scales, nonlinear material behavior. Although noteworthy attempts been made understand coupled rudimentary concepts inter-phase interactions give rise mechanical nonlinearity remain insufficiently understood, this impedes further advancements. holistic review addresses these standalone bridges gaps by providing thorough examination myriad techniques, applications, experimental, modeling approaches. Specifically, presents wide spectrum ranging from traditional molding cutting-edge four-dimensional printing, unbounded prospects diverse fields research. The covers various approaches, including continuum frameworks encompassing phenomenological homogenization models, as well microstructural models. Additionally, it emerging techniques like machine learning-based context hMSMs. Finally, expansive landscape promising systems is provided for better understanding prospective

Language: Английский

---

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

---

Dynamic modeling and analysis of viscoelastic hard-magnetic soft actuators with thermal effects

International Journal of Non-Linear Mechanics, Journal Year: 2024, Volume and Issue: 165, P. 104801 - 104801

Published: Oct. 1, 2024

Language: Английский

---

Dynamic modeling and analysis of a hard-magneto-viscoelastic soft beam under large amplitude oscillatory motions: simulation and experimental studies

Nonlinear Dynamics, Journal Year: 2024, Volume and Issue: 112(10), P. 8109 - 8127

Published: April 4, 2024

Language: Английский

---

Semi-analytical framework for nonlinear vibration analysis of hard-magnetic soft beams

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110149 - 110149

Published: March 1, 2025

Language: Английский

---