Tailored Torsion and Bending‐Resistant Avian‐Inspired Structures

Buccino, Federica; Bruzzaniti, Paolo; Candidori, Sara; Graziosi, Serena; Vergani, L.

doi:10.1002/adem.202200568

Cited by 6 publications

(2 citation statements)

References 41 publications

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“…Using bone as a source of inspiration should therefore optimise stiffness, strength, toughness and lightness, and thus reduce manufacturing cost (both financial and ecological) while increasing the strength (and life span) of bioinspired (BI) structures. This explains why boneinspiration is increasingly used in fields as varied as art, industry, medicine, robotics, garment manufacturing, and architecture (as even in the past in the construction of the Eiffel Tower) [12][13][14][15][16][17][18]. This evolution has been facilitated by the recent advances and versatility of additive manufacturing techniques, which allow the creation of objects with increasingly complex microarchitectures [19,20].…”

Section: Introductionmentioning

confidence: 99%

How can research on modern and fossil bones help us build more resistant columns?

Houssaye,

Etienne,

Gallic

et al. 2024

Bioinspir. Biomim.

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Bone is an economical material. Indeed, as moving a heavy skeleton is energetically costly, the vertebrate skeleton is adapted to maximise resistance to the stresses imposed with a minimum amount of material, so that bone tissue is deposited where it is needed. Using bone as a source of inspiration should therefore reduce the manufacturing cost (both financial and ecological) and increase the strength (and lifespan) of bioinspired structures. This study proposes to investigate which adaptive features of the outer shape and inner structure of bone, related to compressive strength, could be used to build bioinspired support structures. To do so, we explain the choice of the bones to be analysed and present the results of the biomechanical analyses (FEA) carried out on virtual models built from the structures of the different bone models and of the mechanical tests carried out on 3D-printed versions of these models. The compressive strength of these direct bone bio-inspired columns was compared with each other, and with those of a conventional filled cylindrical column, and of a cylindrical column whose internal structure is bio-inspired from the radius of the white rhinoceros. The results of our comparative analyses highlight that the shape of long bones is less effective than a cylinder in resisting compression but underline the interest in designing bio-inspired cylindrical columns with heterogeneous structures inspired by the radius of the white rhinoceros and the tibia of the Asian elephant, and raise the interest in studying the fossil record using the radius of the giant rhinocerotoid Paraceratherium.

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Section: Introductionmentioning

confidence: 99%

How can research on modern and fossil bones help us build more resistant columns?

Houssaye,

Etienne,

Gallic

et al. 2024

Bioinspir. Biomim.

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“…To achieve an even better performance, an ingenious solution is to learn how biological structures adjust their configurations to absorb energy without catastrophic failure [1,24]. Lessons from nature could be as inspiring as they are puzzling: indeed, plants and animals offer an enormous range of promising but hierarchically complex structures with low density, high strength, and high energy absorption capacities that could inspire the design of novel lattice structures with remarkable energy absorption capacity [25]. For example, the pomelo fruit has a spongy layer that can dissipate energy of 80 J from free fall without visible outer damage of the peel [26].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Energy Absorbent Bioinspired Lattice Structures

Greco

Buccino

et al. 2023

J Bionic Eng

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The increasing demand for energy absorbent structures, paired with the need for more efficient use of materials in a wide range of engineering fields, has led to an extensive range of designs in the porous forms of sandwiches, honeycomb, and foams. To achieve an even better performance, an ingenious solution is to learn how biological structures adjust their configurations to absorb energy without catastrophic failure. In this study, we have attempted to blend the shape freedom, offered by additive manufacturing techniques, with the biomimetic approach, to propose new lattice structures for energy absorbent applications. To this aim we have combined multiple bio-inspirational sources for the design of optimized configurations under compressive loads. Periodic lattice structures are fabricated based on the designed unit cell geometries and studied using experimental and computational strategies. The individual effect of each bio-inspired feature has been evaluated on the energy absorbance performance of the designed structure. Based on the design parameters of the lattices, a tuning between the strength and energy absorption could be obtained, paving the way for transition within a wide range of real-life applicative scenarios.

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Avian Bone‐Inspired Super Fatigue Resistant MXene‐Based Aerogels with Human‐Like Tactile Perception for Multilevel Information Encryption Assisted by Machine Learning

Ren,

Huang,

Han

et al. 2024

Adv Funct Materials

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Developing multimodal sensors with human‐like tactile perception is highly desirable for wearable devices, electronic skins (e‐skins), and human‐machine interfaces. However, realizing decoupled signal output and high‐precision measurement remains challenging. Superelastic conductive aerogels are ideal materials for fabricating multimodal sensors as they can convert pressure and temperature stimuli into different electrical signals. Herein, inspired by the microstructure of lightweight and robust avian bones, a biomimetic lamellar silica nanofiber/MXene aerogel (LSMA) sensor for decoupled pressure and temperature sensing is first developed. The avian bone‐like lamellae‐strut structure endows the ultralight LSMA with superb fatigue resistance of 99.1% height retention after 10 000 compression cycles, which is second to none in the reported MXene‐based aerogels. Meanwhile, benefiting from the advantages of the aerogel structure, the LSMA sensor integrating piezoresistive and thermoelectric effects has an ultrahigh temperature resolution of 0.07 K and the lowest pressure detection limit of 0.20 Pa in the reported pressure‐temperature sensors. The unique performance renders it a promising platform for wearable physiological monitoring and tactile e‐skin. Furthermore, an innovative multilevel encryption protection system assisted by machine learning is designed based on the LSMA sensing array as the interactive terminal. This study provides novel insights into the design and application of multimodal sensors.

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Tailored Torsion and Bending‐Resistant Avian‐Inspired Structures

Cited by 6 publications

References 41 publications

How can research on modern and fossil bones help us build more resistant columns?

How can research on modern and fossil bones help us build more resistant columns?

Design and Analysis of Energy Absorbent Bioinspired Lattice Structures

Avian Bone‐Inspired Super Fatigue Resistant MXene‐Based Aerogels with Human‐Like Tactile Perception for Multilevel Information Encryption Assisted by Machine Learning

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