Tough and deformable glasses with bioinspired cross-ply architectures

Yin, Zhen Yu; Dastjerdi, Ahmad Khayer; Barthelat, François

doi:10.1016/j.actbio.2018.05.012

Cited by 35 publications

(22 citation statements)

References 30 publications

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“…Laser etched composites displayed deformation mechanisms seen in nacre and have increased toughness. Drawing inspiration from fish scales and arthropod cuticles, this technique has also been used to create crossply patterns in glass‐polymer composites . These composites allow large deformation and avoid brittle fracture when compared to standard laminated glass while maintaining transparency (Figure b).…”

Section: Bioinspired Designs At Different Length‐scalesmentioning

confidence: 99%

“…Drawing inspiration from fish scales and arthropod cuticles, this technique has also been used to create crossply patterns in glass‐polymer composites . These composites allow large deformation and avoid brittle fracture when compared to standard laminated glass while maintaining transparency (Figure b). Since transparency is not affected, there are a variety of engineering applications for this laser etched glass composite, including use in car windshields to localize damage.…”

Section: Bioinspired Designs At Different Length‐scalesmentioning

confidence: 99%

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Multiscale Toughening Mechanisms in Biological Materials and Bioinspired Designs

et al. 2019

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Biological materials found in Nature such as nacre and bone are well recognized as light-weight, strong, and tough structural materials. The remarkable toughness and damage tolerance of such biological materials are conferred through hierarchical assembly of their multiscale (i.e., atomicto macroscale) architectures and components. Herein, the toughening mechanisms of different organisms at multilength scales are identified and summarized: macromolecular deformation, chemical bond breakage, and biomineral crystal imperfections at the atomic scale; biopolymer fibril reconfiguration/deformation and biomineral nanoparticle/nanoplatelet/ nanorod translation, and crack reorientation at the nanoscale; crack deflection and twisting by characteristic features such as tubules and lamellae at the microscale; and structure and morphology optimization at the macroscale. In addition, the actual loading conditions of the natural organisms are different, leading to energy dissipation occurring at different time scales. These toughening mechanisms are further illustrated by comparing the experimental results with computational modeling. Modeling methods at different length and time scales are reviewed. Examples of biomimetic designs that realize the multiscale toughening mechanisms in engineering materials are introduced. Indeed, there is still plenty of room mimicking the strong and tough biological designs at the multilength and time scale in Nature.

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Section: Bioinspired Designs At Different Length‐scalesmentioning

confidence: 99%

Section: Bioinspired Designs At Different Length‐scalesmentioning

confidence: 99%

Multiscale Toughening Mechanisms in Biological Materials and Bioinspired Designs

et al. 2019

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“…Accepted by Extreme Mechanics Letters https://doi.org/10.1016/j.eml.2021.101208 3 Synthetic elastomers have a similar large deformation behavior to the soft organic materials in nacre. Previous studies [6][7][8][9][10] using elastomers as the soft interface in nacre-inspired architectured composites successfully improved the crack growth resistance, damage tolerance and impact resistance. Cavities and ligaments are formed at the elastomer interface under large deformation [6], which is consistent with the behavior of nacre.…”

Section: Introductionmentioning

confidence: 99%

“…For example, nacre from mollusk shells, a composite of 95 vol% minerals and 5 vol% organic materials, is 3000 times more fracture resistant than the mineral component. [5] The "brick-and-mortar" architecture with microscale tablets of calcium carbonate bonded by nanoscale interlayer of chitin and protein in nacre leads to an attractive combination of stiffness, strength and toughness, which has inspired the development of advanced composite materials [6][7][8][9][10]. Soft organic materials, despite their small amounts in nacre, play a critical role in spreading nonlinear deformations over large volumes and achieving high toughness at the macroscopic scale [11].…”

Section: Introductionmentioning

confidence: 99%

“…The sacrificial bonds and hidden lengths toughening mechanism is also found in bone [14], spider silk [15] and mussel byssus threads [16]. Recent studies [6][7][8][9][10] on bioinspired composites often focus on duplicating the architecture in nacre at the microscopic scale to achieve crack deflection and bridging or interfacial sliding toughening mechanisms, while few [17,18] focuses on the development of soft interface materials that mimic the large inelastic deformation and high energy dissipation of natural organic materials. The challenge lies in reproducing the sacrificial bonds and hidden lengths toughening mechanism in engineering materials.…”

Section: Introductionmentioning

confidence: 99%

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Toughening elastomers via microstructured thermoplastic fibers with sacrificial bonds and hidden lengths

Zou¹,

Therriault²,

Gosselin³

2021

Extreme Mechanics Letters

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Soft materials capable of large inelastic deformation play an essential role in highperformance nacre-inspired architectured materials with a combination of stiffness, strength and toughness. The rigid "building blocks" made from glass or ceramic in these architectured materials lack inelastic deformation capabilities and thus rely on the soft interface material that bonds together these building blocks to achieve large deformation and high toughness. Here, we demonstrate the concept of achieving large inelastic deformation and high energy dissipation in soft materials by embedding microstructured thermoplastic fibers with sacrificial bonds and hidden lengths in a widely used elastomer. The microstructured fibers are fabricated by harnessing the fluid-mechanical instability of a molten polycarbonate (PC) thread on a commercial 3D printer. Polydimethylsiloxane (PDMS) resin is infiltrated around the fibers, creating a soft composite after curing. The failure mechanism and damage tolerance of the composite are analyzed through fracture tests. The high energy dissipation is found to be related to the multiple fracture events of both the sacrificial bonds and elastomer matrix. Combining the microstructured fibers and straight fibers in the elastomer composite results in a ~ 17 times increase in stiffness and a ~ 7 times increase in total energy to failure compared to the neat elastomer. Our findings in applying the

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Advancing the Mechanical Performance of Glasses: Perspectives and Challenges

et al. 2022

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in terms of deciphering structure-property relationships and the nonaffine nature of glass mechanical behavior, of computational and computer-assisted methods for accelerated materials discovery, and of physicochemical insight at glass formation and synthesis in unconventional types of materials. Despite this progress, significant questions remain as to the fundamental role of structural heterogeneity and its consequences for the predictability of mechanical properties underlying the many applications of glass. Today's challenge is to translate new understanding of the physics of disorder, glass chemistry, and surface mechanics into tools that enable future glass products with adapted elasticity, strength, and toughness. We will therefore consider fundamental advances in relation to emerging glass applications. While the aforementioned physical insights have mostly been obtained by computational simulation of model systems, and often through the examination of metallic glasses, we will here focus on glasses suitable for visible transparency, in particular silicate glasses, such as a representative of today's most prolific glass devices, ranging from ultrathin substrates to strong and visually transparent cover materials. We will further consider hybrid glasses and glass-like composite materials as emerging alternatives that may overcome the ubiquitous conflict between strength and toughness. [1] Glasses are materials that lack a crystalline microstructure and long-range atomic order. Instead, they feature heterogeneity and disorder on superstructural scales, which have profound consequences for their elastic response, material strength, fracture toughness, and the characteristics of dynamic fracture. These structure-property relations present a rich field of study in fundamental glass physics and are also becoming increasingly important in the design of modern materials with improved mechanical performance. A first step in this direction involves glass-like materials that retain optical transparency and the haptics of classical glass products, while overcoming the limitations of brittleness. Among these, novel types of oxide glasses, hybrid glasses, phase-separated glasses, and bioinspired glass-polymer composites hold significant promise. Such materials are designed from the bottom-up, building on structure-property relations, modeling of stresses and strains at relevant length scales, and machine learning predictions. Their fabrication requires a more scientifically driven approach to materials design and processing, building on the physics of structural disorder and its consequences for structural rearrangements, defect initiation, and dynamic fracture in response to mechanical load. In this article, a perspective is provided on this highly interdisciplinary field of research in terms of its most recent challenges and opportunities.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.202109029.

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Tough and deformable glasses with bioinspired cross-ply architectures

Cited by 35 publications

References 30 publications

Multiscale Toughening Mechanisms in Biological Materials and Bioinspired Designs

Multiscale Toughening Mechanisms in Biological Materials and Bioinspired Designs

Toughening elastomers via microstructured thermoplastic fibers with sacrificial bonds and hidden lengths

Advancing the Mechanical Performance of Glasses: Perspectives and Challenges

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