The Next Frontier in Melt Electrospinning: Taming the Jet

Advanced Functional Materials, Journal Year: 2019, Volume and Issue: 29(44)

Published: Aug. 18, 2019

Abstract There is a specialized niche for the electrohydrodynamic jetting of melts, from biomedical products to filtration and soft matter applications. The next frontier includes optics, microfluidics, flexible electronic devices, network composites in biomaterial science robotics. recent emphasis on reproducibly direct‐writing continual molten jets has enabled spectrum contemporary microscale 3D objects be fabricated. One strong suit melt processing capacity jet solidify rapidly into fiber, thus fixing particular structure position. ability direct‐write complex multiscaled architectures structures greatly contributed large number studies, explicitly, toward fiber–hydrogel fugitive inks, expanded several applications such as cartilage, skin, periosteum, cardiovascular tissue engineering. Following footsteps publication that summarized electrowriting literature up 2015, most then until now reviewed provide continuous comprehensive timeline demonstrates latest advances well new perspectives this emerging technology.

Language: Английский

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4D Printing Auxetic Metamaterials with Tunable, Programmable, and Reconfigurable Mechanical Properties

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(43)

Published: Sept. 9, 2020

Abstract Auxetic mechanical metamaterials, which expand transversally when axially stretched, are widely used in flexible electronics and aerospace. However, these chiral metamaterials suffer from three severe limitations as a typical auxetic metamaterials: narrow strain range, non‐tunable behaviors, fixed properties after fabrication. In this work, 4D printing with tunable, programmable, reconfigurable developed. The deformation mode transforms bending dominated to stretching under large deformation, leading the stress–deformation (σ–λ) behavior of similar those biomaterials (“ J ”‐shaped), such tissues or organs. programmability reconfigurability developed allow change between different high precision. Furthermore, scaffolds personalized well configurations metamaterials‐based light‐emitting diode integrated devices demonstrate potential applications tissue engineering programmable electronics.

Language: Английский

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Additively manufactured materials and structures: A state-of-the-art review on their mechanical characteristics and energy absorption

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 246, P. 108102 - 108102

Published: Jan. 6, 2023

Language: Английский

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Deep generative modeling for mechanistic-based learning and design of metamaterial systems

Computer Methods in Applied Mechanics and Engineering, Journal Year: 2020, Volume and Issue: 372, P. 113377 - 113377

Published: Sept. 7, 2020

Language: Английский

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3D Pixel Mechanical Metamaterials

Advanced Materials, Journal Year: 2019, Volume and Issue: 31(25)

Published: May 9, 2019

Metamaterials have unprecedented properties that facilitate the development of advanced devices and machines. However, their interconnected building structures limit applications, especially in fields require large deformation, rich programmability efficient shape-reconfigurability. To break this exploit more potentialities metamaterials, an innovative material design strategy is proposed, named mechanical pixel (MP) array design. Similar to a screen displays images by adjusting colors pixels, metamaterials can form reconfigure 3D morphologies tuning heights (lengths) MPs array. The demonstrated multistable metamaterial experimental tests, theoretical analysis, numerical simulations. Using strategy, macroscopic shear deformation obtained, remarkable enhancements programmability, shape-reconfigurability adaptability, reusable shock-resistance are exhibited. Moreover, property prediction for both greatly simplified due pixelated For piece with m n-unit MPs, number programmable displacement-force curves increases from n+1 2m∙n+1 , stable grows at least (n+1)m . This be used enhance merits further excavate potential versatile metamaterials.

Language: Английский

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Flexible Metamaterial Electronics

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(52)

Published: March 24, 2022

Abstract Over the last decade, extensive efforts have been made on utilizing advanced materials and structures to improve properties functionalities of flexible electronics. While conventional ways are approaching their natural limits, a revolutionary strategy, namely metamaterials, is emerging toward engineering structural break existing fetters. Metamaterials exhibit supernatural physical behaviors, in aspects mechanical, optical, thermal, acoustic, electronic that inaccessible materials, such as tunable stiffness or Poisson's ratio, manipulating electromagnetic elastic waves, topological programmable morphability. These salient merits motivate metamaterials brand‐new research direction inspired innovative applications Here, groundbreaking interdisciplinary field first coined “flexible metamaterial electronics,” focusing enhancing innovating electronics via design metamaterials. Herein, latest progress trends this infant reviewed while highlighting potential value. First, brief overview starts with introducing combination Then, developed discussed, self‐adaptive deformability, ultrahigh sensitivity, multidisciplinary functionality, followed by discussion prospects. Finally, challenges opportunities facing advance cutting‐edge summarized.

Language: Английский

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In-plane energy absorption characteristics of a modified re-entrant auxetic structure fabricated via 3D printing

Composites Part B Engineering, Journal Year: 2021, Volume and Issue: 228, P. 109437 - 109437

Published: Oct. 29, 2021

Language: Английский

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3D Printing of Continuous Fiber Reinforced Polymer Composites: Development, Application, and Prospective

Chinese Journal of Mechanical Engineering Additive Manufacturing Frontiers, Journal Year: 2022, Volume and Issue: 1(1), P. 100016 - 100016

Published: Feb. 17, 2022

Continuous fiber reinforced polymer composites (CFRPC) have been widely used in the field of automobile, aircraft, and space due to light weight, high specific strength modulus comparison with metal as well alloys. Innovation on 3D printing CFRPCs opened a new era for design fabrication complicated composite structure performance low cost. provided an enabling technology bridge gaps between advanced materials innovative structures. State-of-art has reviewed according correlations materials, structure, process, functions CFRPCs. Typical applications future perspective were illustrated order grasp opportunities face challenges, which need much more interdisciplinary researches covering process equipment, structural design, final smart performance.

Language: Английский

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Mechanical metamaterials based on origami and kirigami

Applied Physics Reviews, Journal Year: 2021, Volume and Issue: 8(4)

Published: Nov. 23, 2021

Once merely ancient arts, origami (i.e., paper folding) and kirigami cutting) have in recent years also become popular for building mechanical metamaterials now provide valuable design guidelines. By means of folding cutting, two-dimensional thin-film materials are transformed into complex three-dimensional structures shapes with unique programmable properties. In this review, based on and/or categorized three groups: (i) origami-based ones (with only), (ii) kirigami-based cutting (iii) hybrid origami–kirigami-based both cutting). For each category, the deformation mechanisms, principles, functions, applications reviewed from a perspective.

Language: Английский

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A review on application of mechanical metamaterials for vibration control

Mechanics of Advanced Materials and Structures, Journal Year: 2021, Volume and Issue: 29(22), P. 3237 - 3262

Published: Feb. 26, 2021

Mechanical metamaterials exhibit some superior mechanical properties such as ultrahigh strength-to-weight ratio, negative bulk-modulus, stiffness, mass-density, and Poisson's ratio. These advantages led to a variety of applications, especially in vibration isolation, by targeting tuning for specific frequency-range called stopband. The ability is achieved from its array unit-cells, which can be topologically optimized the desired frequency range. This review discusses development focuses on control applications using passive active approaches stopband enhancement broadening bandwidth at varying frequency-ranges.

Language: Английский

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