Armours for soft bodies: how far can bioinspiration take us?

White, Zachary; Vernerey, Franck J.

doi:10.1088/1748-3190/aababa

Cited by 31 publications

(15 citation statements)

References 127 publications

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“…These theoretical predictions are therefore useful for both improving our fundamental knowledge of polymer failure and for practical applications that aim for durable and fracture resistant polymer. Such tough and functional materials are indeed very desirable for tissue engineering, 1,8,39 soft robotics, 37,47 soft armors, 53 and soft elastomers. 25 We note that the criterion for chain rupture introduced in this paper is phenomenological.…”

Section: Resultsmentioning

confidence: 99%

Statistical Damage Mechanics of Polymer Networks

et al. 2018

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The macroscopic mechanical response of polymers can be traced down to the microscale physics of the network by using a statistical approach for the description of the configuration state of the polymer chains. In this paper we present a micromechanical model to capture the macroscopic behavior of polymers by tracking the evolution of a distribution function describing chain configurations, more specifically the statistics of the end-to-end distance on the network chains. Damage, manifested in the softening and hysteresis under cyclic loading, is accounted for through the scission of chains, whose occurrence is evaluated on the basis of the probability of failure, also settled in the configuration space. The proposed micromechanical model can easily accommodate also the mechanics of dynamic network with reversible cross-links, thereby providing a general and physics-based approach to the study of polymers and polymer-like materials.

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Section: Resultsmentioning

confidence: 99%

Statistical Damage Mechanics of Polymer Networks

et al. 2018

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“…Such outcomes will improve the quality of simulation results, as we clearly see how the mechanical responses can deviate due to structural and material complexities so far observed. The importance of knowledge about material properties of insect cuticle for understanding functional mechanisms of different organs is huge [21,26,30,[37][38][39][40][41] e.g., for robotics [40,41], and can be extended to the sensory structures [16,[41][42][43][44][45]. This is not only a matter of academic interest but could also feature in the improvement of biomimetic sensory systems with wide applications.…”

Section: Discussionmentioning

confidence: 99%

Resilin Distribution and Sexual Dimorphism in the Midge Antenna and Their Influence on Frequency Sensitivity

Saltin

Matsumura

Reid

et al. 2020

Insects

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Small-scale bioacoustic sensors, such as antennae in insects, are often considered, biomechanically, to be not much more than the sum of their basic geometric features. Therefore, little is known about the fine structure and material properties of these sensors—even less so about the degree to which the well-known sexual dimorphism of the insect antenna structure affects those properties. By using confocal laser scanning microscopy (CLSM), we determined material composition patterns and estimated distribution of stiffer and softer materials in the antennae of males and females of the non-biting midge Chironomus riparius. Using finite element modelling (FEM), we also have evidence that the differences in composition of these antennae can influence their mechanical responses. This study points to the possibility that modulating the elastic and viscoelastic properties along the length of the antennae can affect resonant characteristics beyond those expected of simple mass-on-a-spring systems—in this case, a simple banded structure can change the antennal frequency sensitivity. This constitutes a simple principle that, now demonstrated in another Dipteran group, could be widespread in insects to improve various passive and active sensory performances.

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“…Arthropod cuticle is one of the world's most common biological composite materials and one of the most evolutionary successful forms of 'outer body protection' [59]. Based on its outstanding evolutionary success and abundance in our ecosystem, the structure and composition of insect cuticle have been the biological inspiration for several biomimetic studies: For example, composite structures inspired by cuticle can increase strength in look-alike designed composite laminate with pore-like holes [24].…”

Section: Structure Of 'The' Insect Exoskeleton and Cuticlementioning

confidence: 99%

Biomechanics of insect cuticle: an interdisciplinary experimental challenge

2021

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The cuticle exoskeleton plays a key role in facilitating the evolutionary success of insects. Since the mid of the last century, many different biomechanical properties of exoskeletons have been investigated, always utilizing the most sophisticated scientific methods available at the time. So far, information on the biomechanical properties of cuticle seems to be as diverse as the methods used to measure them. As a consequence, insect cuticle is often considered to exhibit the most complex and diverse biomechanical properties of any biological material. However, it remains unclear which role the respective measurement methods and sample treatments used in previous studies play in supporting this claim. This review provides a broad overview of examination techniques used to study biomechanical properties of insect exoskeletons and discusses their respective advantages and disadvantages in describing the properties of a complex material such as cuticle. Our meta-analysis of the present data confirms significant effects of the respective measurement methods, sample treatments and body parts on the obtained mechanical properties. Based on our findings, we highlight research gaps and point out important factors which should be taken into account in future studies on insect cuticle.

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Armours for soft bodies: how far can bioinspiration take us?

Cited by 31 publications

References 127 publications

Statistical Damage Mechanics of Polymer Networks

Statistical Damage Mechanics of Polymer Networks

Resilin Distribution and Sexual Dimorphism in the Midge Antenna and Their Influence on Frequency Sensitivity

Biomechanics of insect cuticle: an interdisciplinary experimental challenge

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