Defense
4D printing for crack trapping and adaptive damage-tolerant structures
A review synthesizes how 4D printing can enable crack trapping and damage-tolerant behavior through smart, metamaterial-based self-sensing and time-dependent shape change.
Acoustic Metamaterial Nanogenerator for Multi-Band Sound Insulation and Acoustic–Electric Conversion
An acoustic metamaterial nanogenerator uses multi-local resonance to deliver tunable multi-band sound insulation (up to 40 dB) while converting low-frequency sound into electricity via a TENG.
HGX: Un Material Cuántico Regenerativo Autorreparable y Multifuncional para una nueva era Tecnológica
HGX is presented as a multifunctional, self-healing quantum-regenerative material claimed to improve batteries, optical fibers, quantum chips, and HL-LHC technologies.
Inverse design of programmable shape-morphing kirigami structures
A two-stage inverse-design framework links kirigami geometry to mechanics to create shape-morphing structures that deploy from compact to target states under mechanical stimuli.
Shape-retaining beam-like morphing structures via localized snap through
Bistable arch-on-compliant-base units can snap through to multiple stable shapes, and arrays can be inverse-designed to morph into target stable configurations.
Hydrogel-based flexible metamaterial for underwater acoustic carpet cloaking
A hydrogel-based flexible metamaterial is proposed for underwater acoustic carpet cloaking.
Fundamental absorption bandwidth to thickness limit for transparent homogeneous layers
A universal bandwidth-to-thickness limit for transparent homogeneous absorber layers is derived via Kramers–Kronig relations and supported by simulations and metamaterial modeling.
Thin Acoustic-Composite Structures With Metamaterial Inclusions for Enhanced Low-Frequency Sound Absorption
Thin porous acoustic composites with tunable labyrinthine metamaterial inclusions achieve enhanced low-frequency absorption via multiresonant behavior confirmed by acoustic tests.
Invisible design and acoustic scattering of metamaterial plates with active feedback control
Active feedback-controlled metamaterial plates are designed to reduce low-frequency acoustic scattering by tuning dynamic effective density, enabling “invisible” behavior for underwater vehicles.
Optical non-Hermitian skin effect in two-dimensional uniform media
A theory shows optical non-Hermitian skin modes can localize in uniform anisotropic lossy media, with localization set by an effective gauge potential and implementable via subwavelength multilayer metamaterials.
A metamaterial with applications in broad band antennas used in radio astronomy and satellite communications
A laboratory-fabricated meta-horn antenna built from manufacturable meta-rings demonstrates an excellent octave-bandwidth feature with improved cross-polarization for radio astronomy and satellite communications.
Interpretable SHAP-bounded Bayesian optimization for underwater acoustic metamaterial coating design
An interpretability-informed Bayesian optimization method uses SHAP to refine design-space bounds and improve underwater acoustic metamaterial coating designs without extra simulations.
A Three-dimensional Constitutive Model for Polycrystalline Shape Memory Alloys Under Large Strains Combined With Large Rotations
A finite-deformation 3D constitutive model for polycrystalline SMAs is proposed to capture large transformation strains and large rotations using logarithmic strain and internal state variables.
Manufacturing of 3D-metallic electromagnetic metamaterials for feedhorns used in radioastronomy and satellite communications
A new metallic meta-ring electromagnetic metamaterial is theoretically justified and fabricated, enabling a compact prototype microwave antenna with a 2:1 bandwidth for radioastronomy and satellite communications.
Optical left-handed metamaterials made of arrays of upright split-ring pairs
Simulations suggest an optical left-handed metamaterial made from upright split-ring pairs can achieve strong double-negative behavior and negative refraction in the near-IR.
Inhomogeneous All-Dielectric Magnetic Metamaterials
An experimentally tested inhomogeneous all-dielectric magnetic metamaterial with permeability varying from positive to negative enables localized electromagnetic field enhancement and resonant absorption under oblique incidence.
Magnetoresponsive Fiber-Reinforced Periodic Impedance-Gradient Absorber: Design and Microwave Absorption Performance
A novel multilayer metamaterial absorber achieves efficient electromagnetic absorption across multiple bands with enhanced mechanical properties.
Design of I-WP Gradient Metamaterial Broadband Electromagnetic Absorber Based on Additive Manufacturing
This study proposes a novel gradient electromagnetic wave absorber design that achieves broadband absorption and mechanical robustness using additive manufacturing.
Multi-Resonant Metamaterial Absorber for Electromagnetic Absorption in S-, C-, X-, and Ku- Bands
This study presents a multi-resonant metamaterial absorber achieving over 97% electromagnetic absorption across several microwave frequency bands.
Tailored Multi‐Scale and Flexible Metamaterial for Broadband Electromagnetic Wave Absorption and Infrared Stealth
This research presents a flexible metamaterial absorber that achieves radar-IR compatible stealth with enhanced electromagnetic wave absorption.
Flexible multi-band metamaterial absorber with polarization-insensitive electromagnetic stealth
This research presents a flexible electromagnetic metamaterial absorber with high absorption rates and polarization insensitivity, suitable for advanced communication and stealth applications.
Integrated Electromagnetic Wave Absorption‐Transmission via 3D‐Printed Bilayered Metamaterial
A bilayered 3D-printed metamaterial achieves integrated electromagnetic wave absorption and transmission, enhancing performance for communication systems.