Unprecedented Strength Enhancement Observed in Interpenetrating Phase Composites of Aperiodic Lattice Metamaterials

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 3, 2024

Abstract Simultaneous high strength and toughness are highly sought‐after in lattice metamaterials, but these properties typically mutually exclusive. To overcome this challenge, the development of interpenetrating phase composite (IPC), which incorporates a net matrix infill into lattice, has shown great potential overcoming constraints is thus continuous practical interest. In work, novel aperiodic monotile truss polymer IPC that exhibit unprecedented enhancement both reported. Specifically, unit cell inspired by Einstein's monotile, single space‐filling shape where orientation never repeats. The IPCs achieved through 3D‐printed Ti‐6Al‐4V lattices epoxy infiltration. highest gain compressive reveals an impressive 246.61% increase, significantly exceeding “1 + 1 > 2” idealization associated with metamaterials. Furthermore, specific energy absorption 46.2 J g −1 demonstrates superior toughness. underlying mechanisms, including damage sequences, two‐phase interactions, geometric effects between epoxy, fully elucidated. Overall, work reports IPC's utilizing idealized structures to achieve optimal combination mechanical

Language: Английский

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Multi‐Physical Lattice Metamaterials Enabled by Additive Manufacturing: Design Principles, Interaction Mechanisms, and Multifunctional Applications

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Abstract Lattice metamaterials emerge as advanced architected materials with superior physical properties and significant potential for lightweight applications. Recent developments in additive manufacturing (AM) techniques facilitate the of lattice intricate microarchitectures promote their applications multi‐physical scenarios. Previous reviews on have largely focused a specific/single field, limited discussion properties, interaction mechanisms, multifunctional Accordingly, this article critically design principles, structure‐mechanism‐property relationships, enabled by AM techniques. First, are categorized into homogeneous lattices, inhomogeneous other forms, whose principles processes discussed, including benefits drawbacks different fabricating types lattices. Subsequently, structure–mechanism–property relationships mechanisms range fields, mechanical, acoustic, electromagnetic/optical, thermal disciplines, summarized to reveal critical principles. Moreover, metamaterials, such sound absorbers, insulators, manipulators, sensors, actuators, soft robots, management, invisible cloaks, biomedical implants, enumerated. These provide effective guidelines

Language: Английский

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Generative deep learning for designing irregular metamaterials with programmable nonlinear mechanical responses

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110123 - 110123

Published: March 1, 2025

Language: Английский

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A class of aperiodic honeycombs with tuneable mechanical properties

Applied Materials Today, Journal Year: 2024, Volume and Issue: 37, P. 102127 - 102127

Published: Feb. 19, 2024

Metamaterials are a promising area of research, offering the potential to customise mechanical properties designed components address specific engineering problems. These synthetic materials engineered structures, behaviour which is derived from internal geometry as well base-material. It has been shown that designing such structures give rise single desired property relatively simple, however combinations desirable remains challenge. This paper concerned with class honeycomb metamaterials offer independently and isotropically modify two fundamental properties, Poisson's ratio Elastic modulus. The recently discovered 'hat' monotile introduced new aperiodic pattern investigate basis it reported have zero at range relative densities and, consequently, stiffnesses. Unlike most other tilings, part continuous family gives opportunity tune by modifying geometric tiling, all while maintaining isotropy. Here we present full tilings assess their both through testing simulation. Results computational modelling show this isotropic they 0.01 0.49 densities, leading exciting conclusion modulus can be tuned independently. We envisage finding will benefit design components, for example possibility match metamaterial those surrounding or reduce interference stresses.

Language: Английский

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Spatial tuning of the positive and negative Poisson's ratio of metamaterials through gradient design

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 205, P. 112382 - 112382

Published: Aug. 25, 2024

Language: Английский

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Effective elastic properties of novel aperiodic monotile-based lattice metamaterials

Materials & Design, Journal Year: 2024, Volume and Issue: 244, P. 113102 - 113102

Published: June 19, 2024

Two-dimensional aperiodic lattices emerge as remarkably isotropic metamaterials with potentially unconventional mechanical behavior. This study investigates numerically estimating the effective elastic properties, a function of relative density, novel two-dimensional lattice derived from recently discovered monotiles, known "Hat," "Turtle," and "Spectre" tiles. Furthermore, several classes Hat-based lattices; namely Hexagon (H), Triangle (T), Parallelogram (P), Fan (F), are also investigated. The results show that these have properties independent density. Turtle exhibit larger moduli, gradually converging to Spectre-based density increases. A distinctive feature is their directional auxetic behaviour an anisotropic Poisson's ratio, whereas only at lower densities. Despite ratios, current maintain isotropy, offering unique blend behavior moduli. contributes better understanding monotile potential for engineering certain applications.

Language: Английский

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Artificial Intelligence and Multiscale Modeling for Sustainable Biopolymers and Bioinspired Materials

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Biopolymers and bioinspired materials contribute to the construction of intricate hierarchical structures that exhibit advanced properties. The remarkable toughness damage tolerance such multilevel are conferred through assembly their multiscale (i.e., atomistic macroscale) components architectures. Here, functionality mechanisms biopolymers bio-inspired at multilength scales explored summarized, focusing on biopolymer nanofibril configurations, biocompatible synthetic biopolymers, composites. Their modeling methods with theoretical basis multiple lengths time reviewed for applications. Additionally, exploration artificial intelligence-powered methodologies is emphasized realize improvements in these from functionality, biodegradability, sustainability characterization, fabrication process, superior designs. Ultimately, a promising future versatile manufacturing across wider applications greater lifecycle impacts foreseen.

Language: Английский

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Strength through curvature: Engineering multi-phase materials based on chiral aperiodic monotile patterns

Composite Structures, Journal Year: 2025, Volume and Issue: unknown, P. 119131 - 119131

Published: April 1, 2025

Language: Английский

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Enhanced Deformability Through Distributed Buckling in Stiff Quasicrystalline Architected Materials

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract Architected materials achieve unique mechanical properties through precisely engineered microstructures that minimize material usage. However, a key challenge of low‐density is balancing high stiffness with stable deformability up to large strains. Current microstructures, which employ slender elements such as thin beams and plates arranged in periodic patterns optimize stiffness, are largely prone instabilities, including buckling brittle collapse at low This here addressed by introducing new class aperiodic architected inspired quasicrystalline lattices. Beam networks derived from canonical patterns, the Penrose tiling two dimensions icosahedral quasicrystals (IQCs) three dimensions, shown create stiff, stretching‐dominated topologies non‐uniform force chain distributions, effectively mitigating global instabilities observed designs distributed localized instabilities. Numerical experimental results confirm effectiveness these combining strains, representing significant advancement development metamaterials for applications requiring impact resistance energy absorption. These demonstrate potential deterministic quasi‐periodic bridge gap between random structures, while branching toward uncharted territory property space materials.

Language: Английский

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Griffiths phase in a three-dimensional Ising model with aperiodic interactions

Physical review. E, Journal Year: 2025, Volume and Issue: 111(5)

Published: May 19, 2025

Language: Английский

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