Tough Nature-Inspired Helicoidal Composites with Printing-Induced Voids

Yin, Sha; Chen, Haoyu; Yang, Ruiheng; He, Qinghao; Chen, Dianhao; Ye, Lin; Mai, Yiu‐Wing; Xu, Jun; Ritchie, Robert O.

doi:10.1016/j.xcrp.2020.100109

Cited by 37 publications

(34 citation statements)

References 31 publications

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“…Despite many successful examples of MBSMs fabrication via prestructured matrix directed mineralization, the fabrication of MBSMs with more complex bioinspired structures, such as the helical structure in mantis shrimp dactyl club, remains an unsolved problem. Although helical structures can be constructed by 3D printing very easily, the precision of the printed structures is quite low as compared to that of biological MBSMs . Although no direct evidence has been reported, it is supposed that the capability of chitin to form a liquid-crystalline helical structure may contribute to the helical structure in the dactyl club; chitin is the major organic component in the dactyl club, and it is the chitin matrix that directs the mineralization of the helical structure in the dactyl club (Figure a) .…”

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

“…Although helical structures can be constructed by 3D printing very easily, the precision of the printed structures is quite low as compared to that of biological MBSMs. 128 Although no direct evidence has been reported, it is supposed that the capability of chitin to form a liquid- crystalline helical structure may contribute to the helical structure in the dactyl club; chitin is the major organic component in the dactyl club, and it is the chitin matrix that directs the mineralization of the helical structure in the dactyl club (Figure 8a). 84 In this context, nanomaterials such as chitin and cellulose nanocrystals that can self-assemble into liquidcrystalline matrixes have been used for the fabrication of MBSMs with helical structures.…”

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

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Matrix-Directed Mineralization for Bulk Structural Materials

Mao

Meng

et al. 2022

J. Am. Chem. Soc.

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Mineral-based bulk structural materials (MBSMs) are known for their long history and extensive range of usage. The inherent brittleness of minerals poses a major problem to the performance of MBSMs. To overcome this problem, design principles have been extracted from natural biominerals, in which the extraordinary mechanical performance is achieved via the hierarchical organization of minerals and organics. Nevertheless, precise and efficient fabrication of MBSMs with bioinspired hierarchical structures under mild conditions has long been a big challenge. This Perspective provides a panoramic view of an emerging fabrication strategy, matrix-directed mineralization, which imitates the in vivo growth of some biominerals. The advantages of the strategy are revealed by comparatively analyzing the conventional fabrication techniques of artificial hierarchically structured MBSMs and the biomineral growth processes. By introducing recent advances, we demonstrate that this strategy can be used to fabricate artificial MBSMs with hierarchical structures. Particular attention is paid to the mass transport and the precursors that are involved in the mineralization process. We hope this Perspective can provide some inspiring viewpoints on the importance of biomimetic mineralization in material fabrication and thereby spur the biomimetic fabrication of high-performance MBSMs.

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Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

Matrix-Directed Mineralization for Bulk Structural Materials

Mao

Meng

et al. 2022

J. Am. Chem. Soc.

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Section: Introductionmentioning

confidence: 99%

“…By strategically incorporating voids into the load paths, complex fracture behavior may be realized, wherein the effects of crack deflection and crack blunting are implemented in an engineered manner. [41] Noteworthy, this interesting approach for complex composite structures raises the critical issue in the contact interfaces among the different structural elements, such as fiber-to-matrix, or filament-to-filament interfaces. [42] To date, the scientific community has principally focused on the structural construction of these types of composites, [43,44] while overlooking the in-depth study of the interfaces.…”

Section: Introductionmentioning

confidence: 99%

Outstanding Strengthening and Toughening Behavior of 3D‐Printed Fiber‐Reinforced Composites Designed by Biomimetic Interfacial Heterogeneity

Hwang

Lee

et al. 2021

Advanced Science

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3D printing of fiber‐reinforced composites is expected to be the forefront technology for the next‐generation high‐strength, high‐toughness, and lightweight structural materials. The intrinsic architecture of 3D‐printed composites closely represents biomimetic micro/macrofibril‐like hierarchical structure composed of intermediate filament assembly among the micron‐sized reinforcing fibers, and thus contributes to a novel mechanism to simultaneously improve mechanical properties and structural features. Notably, it is found that an interfacial heterogeneity between numerous inner interfaces in the hierarchical structure enables an exceptional increase in the toughness of composites. The strong interfacial adhesion between the fibers and matrix, with accompanying the inherently weak interfacial adhesion between intermediate filaments and the resultant interfacial voids, provide a close representation of the toughness behavior of natural architectures relying on the localized heterogeneity. Given the critical embedment length of fiber reinforcement, extraordinary improvement has been attained not only in the strength but also in toughness taking advantage of the synergy effect from the aforementioned nature‐inspired features. Indeed, the addition of a small amount of short fiber to the brittle bio‐filaments results in a noticeable increase of more than 200% in the tensile strength and modulus with further elongation increment. This article highlights the inherent structural hierarchy of 3D‐printed composites and the relevant sophisticated mechanism for anomalous mechanical reinforcement.

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“…Nacre-inspired composites can exhibit superior impact resistance [7] as well as ballistic performance [8]. Various helical structures were proposed to mimic a helicoidal arrangement of the mineralized area on the endocuticle of the dactyl club [9,10], while similar helix shapes can also be found in DNA-inspired structures for impact mitigation [11]. Meanwhile, primary efforts have been placed on developing novel structures with distinct orders at different scales [12,13] to mimic the hierarchical organization of biological materials (e.g., coconut shell [14], collagen [15], and conch shell [16]).…”

Section: Introductionmentioning

confidence: 99%

Energy Absorption Performance of Bio-inspired Honeycombs: Numerical and Theoretical Analysis

Sherman

Zhang

2021

Acta Mech. Solida Sin.

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Energy absorption performance has been a long-pursued research topic in designing desired materials and structures subject to external dynamic loading. Inspired by natural bio-structures, herein, we develop both numerical and theoretical models to analyze the energy absorption behaviors of Weaire, Floret, and Kagome-shaped thin-walled structures. We demonstrate that these bio-inspired structures possess superior energy absorption capabilities compared to the traditional thin-walled structures, with the specific energy absorption about 44% higher than the traditional honeycomb. The developed mechanical model captures the fundamental characteristics of the bio-inspired honeycomb, and the mean crushing force in all three structures is accurately predicted. Results indicate that although the basic energy absorption and deformation mode remain the same, varied geometry design and the corresponding material distribution can further boost the energy absorption of the structure, providing a much broader design space for the next-generation impact energy absorption structures and systems.

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Tough Nature-Inspired Helicoidal Composites with Printing-Induced Voids

Cited by 37 publications

References 31 publications

Matrix-Directed Mineralization for Bulk Structural Materials

Matrix-Directed Mineralization for Bulk Structural Materials

Outstanding Strengthening and Toughening Behavior of 3D‐Printed Fiber‐Reinforced Composites Designed by Biomimetic Interfacial Heterogeneity

Energy Absorption Performance of Bio-inspired Honeycombs: Numerical and Theoretical Analysis

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