3D‐Printed Lattice Structures for Sound Absorption: Current Progress, Mechanisms and Models, Structural‐Property Relationships, and Future Outlook

Advanced Science, Journal Year: 2023, Volume and Issue: 11(4)

Published: Nov. 23, 2023

Abstract The reduction of noises, achieved through absorption, is paramount importance to the well‐being both humans and machines. Lattice structures, defined as architectured porous solids arranged in repeating patterns, are emerging advanced sound‐absorbing materials. Their immense design freedom allows for customizable pore morphology interconnectivity, enabling specific absorption properties. Thus far, sound performance various types lattice structures studied they demonstrated favorable properties compared conventional Herein, this review gives a thorough overview on current research status, characterizations terms acoustics proposed. Till date, there four main mechanisms associated with structures. Despite their complexity, can be accurately modelled using acoustical impedance models that focus critical geometries. Four defining features: morphology, relative density, cell size, number cells, have significant influences geometries hence wave dissipation within lattice. Drawing upon structural‐property relationships, classification into three distinct It proposed future attentions placed new concepts, materials selections, multifunctionalities.

Language: Английский

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A ribbed strategy disrupts conventional metamaterial deformation mechanisms for superior energy absorption

Virtual and Physical Prototyping, Journal Year: 2024, Volume and Issue: 19(1)

Published: April 8, 2024

Enhancing energy absorption in mechanical metamaterials has been a focal point structural design. Traditional methods often include introducing heterogeneity across unit cells. Herein, we propose straightforward ribbed strategy to achieve exceptional absorption. We demonstrate our concept through modified body-centered cubic (BCC) and face-centered (FCC) truss-lattice (BCCR FCCR). Using stainless-steel 316L samples, compression tests indicate 111% 91% increase specific (SEA) for BCCR FCCR, respectively, along with an enhancement strength by 61.8% 40.7%. Deformation mechanisms are comprehensively elucidated both finite element analysis theoretical calculations. The mitigation of stress concentration at nodes, redistribution load transfer pathways within struts, introduction multiple plastic hinges collectively contribute increased higher strength. rein-based polymer the also exhibit damage tolerance, experiencing only 15% loss maximum after cyclic 20% strain, while maintaining 73% SEA compared their non-ribbed counterpart. This extends beyond discussed structures, presenting itself as generic approach enhance plateau SEA.

Language: Английский

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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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Unprecedented mechanical wave energy absorption observed in multifunctional bioinspired architected metamaterials

NPG Asia Materials, Journal Year: 2024, Volume and Issue: 16(1)

Published: Sept. 13, 2024

Abstract In practical engineering, noise and impact hazards are pervasive, indicating the pressing demand for materials that can absorb both sound stress wave energy simultaneously. However, rational design of such multifunctional remains a challenge. Herein, inspired by cuttlebone, we present bioinspired architected metamaterials with unprecedented sound-absorbing mechanical properties engineered via weakly-coupled design. The acoustic elements feature heterogeneous multilayered resonators, whereas responses based on asymmetric cambered cell walls. These experimentally demonstrated an average absorption coefficient 0.80 from 1.0 to 6.0 kHz, 77% data points exceeding desired 0.75 threshold, all compact 21 mm thickness. An absorptance-thickness map is devised assessing sound-absorption efficiency. high-fidelity microstructure-based model reveals air friction damping mechanism, broadband behavior attributed multimodal hybrid resonance. Empowered walls, shift catastrophic failure toward progressive deformation mode characterized stable plateaus ultrahigh specific 50.7 J/g—a 558.4% increase over straight-wall After mechanisms elucidated, comprehensive research framework burgeoning acousto-mechanical proposed. Overall, our study broadens horizon material

Language: Английский

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Review on mechanical properties of metal lattice structures

Composite Structures, Journal Year: 2024, Volume and Issue: 342, P. 118267 - 118267

Published: June 12, 2024

Language: Английский

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Laser additive manufacturing of hierarchical multifunctional chiral metamaterial with distinguished damage-resistance and low-frequency broadband sound-absorption capabilities

Materials & Design, Journal Year: 2024, Volume and Issue: 238, P. 112659 - 112659

Published: Jan. 14, 2024

Traditional materials or advanced artificially engineered metamaterials are incapable of effectively addressing the simultaneous challenges impact energy hazards and low-frequency noise. There is an urgent need for multifunctional that can address this multi-physics field coupling problem. Herein, a hierarchical chiral metamaterial (HMCM) proposed damage-resistance broadband sound-absorption capabilities fabricated by means laser powder bed fusion technology. Cavity resonators with internally extended tubes configuration were selected as primary units. The performance HMCM was investigated systematically through experimental, numerical, theoretical methods. Crashworthiness design optimization on implemented to explore effect geometrical parameters including distance ratio wall thickness distribution crushing resistance. It determined specific configurations in these significantly enhance mechanism dissipating HMCM. Furthermore, designed has been experimentally, numerically, theoretically proven possess quasi-perfect sound absorption target range 425 Hz 553 average coefficient exceeding 0.9. Overall, work not only offers promising solution designing but also highlights potential additive manufacturing techniques development such sophisticated materials.

Language: Английский

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Design of 3D rotating triply periodic minimal surface (RotTPMS) lattice plates: Meanings of crystalline rotations and porosity

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 270, P. 109090 - 109090

Published: Feb. 10, 2024

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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Multicell interlacing IWP lattice metamaterials with superior low-frequency vibration isolation performance fabricated by laser powder bed fusion

Additive manufacturing, Journal Year: 2025, Volume and Issue: unknown, P. 104681 - 104681

Published: Jan. 1, 2025

Language: Английский

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Accelerated design of acoustic-mechanical multifunctional metamaterials via neural network

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: 287, P. 109920 - 109920

Published: Jan. 4, 2025

Language: Английский

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