Multi-cell energy-absorbing structures with hollow columns inspired by the beetle elytra

Du, Jun; Hao, Peng; Liu, Mabao; Scarpa, Fabrizio

doi:10.1007/s10853-019-04190-4

Cited by 33 publications

(11 citation statements)

References 50 publications

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“…Energy absorption capabilities of the trabecula have also been explored using trabecular‐honeycomb structures and hollow columns. [ 66,67 ]…”

Section: Resultsmentioning

confidence: 99%

“…Energy absorption capabilities of the trabecula have also been explored using trabecular-honeycomb structures and hollow columns. [66,67] Tensile tests were used to evaluate the maximum stress and stiffness of fresh elytra samples. Figure 4C highlights a nonlinear behavior and damage to the elytra of P. diabolicus compared with failure observed in T. dichotomus.…”

Section: Bulk Mechanical Behaviormentioning

confidence: 99%

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Structural Design Variations in Beetle Elytra

Rivera

Murata

Hosseini

et al. 2021

Adv Funct Materials

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Beetles typically use their protective wing coverings or elytra to shield their membranous hindwings from the environment. Elytra in some terrestrial species have evolved a greater protective role capable of shielding the organism from powerful antagonistic predators. The structure-function relationships of these biological composites identify how architectural and chemical variations of the cuticle are tuned to create light-weight, impact resistant composites. Specifically, the elytral structures of a tree dwelling beetle capable of flight, Trypoxylus dichotomus, and a terrestrial beetle incapable of flight, Phloeodes diabolicus, are compared to understand how their varied environmental needs forged the elytra to facilitate fight or resist fatal predator strikes. Mechanical and microstructural analysis reveals P. diabolicus has a harder, stiffer elytra that incorporate through-thickness fibers to resist greater mechanical stresses imposed by bending and puncture. Conversely, the elytra of T. dichotomus have a compliant structure with large voids that facilitates localized deformation. Variations in flexural strength and puncture resistance remain attributed to P. diabolicus possessing a thicker cuticle with a greater degree of cross-linking and an increased amount of endocuticular layers. These findings may provide useful insight into the design and manufacturing of composite materials for use in light-weight or energy-absorbing applications.

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“…Energy absorption capabilities of the trabecula have also been explored using trabecular‐honeycomb structures and hollow columns. [ 66,67 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Bulk Mechanical Behaviormentioning

confidence: 99%

Structural Design Variations in Beetle Elytra

Rivera

Murata

Hosseini

et al. 2021

Adv Funct Materials

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“…Bionic thin-walled structures [ 8 , 9 ], which are inspired by the design principles of natural structures, have recently attracted wide attention to achieve better crashworthiness and lightweight level, e.g., beetle-inspired structures [ 10 , 11 ], woodpecker-inspired structures [ 12 , 13 ], mantis shrimp-inspired structures [ 14 , 15 ], and shrimp chela structures [ 16 ]. For example, Du et al proposed a novel thin-walled energy absorption structure with hollow columns by studying the beetle elytra [ 17 ]. Zhang et al conducted a systematic review on various biological systems with sophisticated architectures perfectly for impact resistance and energy absorption and conduct dynamic behaviors analysis of each structure from the perspective of design, mechanisms, and models [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Multiple Performance Evaluation of Bionic Thin‐Walled Structures with Different Cross Sections considering Complex Conditions

Zhang

Huang

et al. 2022

Journal of Environmental and Public Health

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Bionic thin-walled structures, due to their excellent energy absorbing capacity, low manufacturing cost, and remarkable level of lightweight, have been widely applied in the field of traffic safety protection. Combinatorial structures that incorporate the prototypical characteristics of multiple organisms also turn into the hotspot of the research on safety protection structure, which can achieve more excellent overall performance. However, how to select the optimal alternative considering the performance of different attributes and different accident conditions has become an urgent problem to be solved. This paper proposes 12 kinds of bionic thin-walled energy absorption structures with different cross sections and bamboo of tubes, which is inspired by the structural characteristics of bamboo. A comprehensive performance analysis, including specific energy absorption, peak crushing force, and undulation of the load-carrying capacity under quasi-static and dynamic conditions, is carried out based on the finite element simulation. The gray relational analysis method is applied to select the optimal structure. In addition, sensitivity analysis of each structural variable is conducted. The result shows that the “+-3” bionic thin-walled structure has the best comprehensive performance, and the structural variable has great impact on the PCF. This study provides an effective decision-making support tool for performance evaluation of bionic thin-walled structures.

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“…Du’s work also provided an important inspiration for the design of the protective structure of the microaerial vehicle. 35 Jeong and Kang presented a novel way to fabricate a metallic foil panel with thickness of 1 mm and evaluated the bending properties of bionic sandwich plate by using the finite element method. They found that the flexural rigidity of metal panel was thousands of times higher than that of the real beetle elytron under different preparation materials and sizes.…”

Section: Introductionmentioning

confidence: 99%

Energy absorption characteristic of bionic lightweight protective structure with curved tubes under impact loading

Hao

Xie

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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Reinforcing and toughening materials with light quality in engineered structures remains a challenge. In the biological tissues of numerous animal and plant species, efficient strategies have evolved to construct structures that have excellent mechanical properties. As a kind of biological structure with high-strength fiber, beetle elytron not only provides protection function for beetles, but also makes beetles light enough to obtain good flight ability. Because of these advantages of inner fibrous structure of elytron, the bionic investigation of beetle elytron has gradually become one of the research focuses in civil engineering and automobile anti-collision fields. In the present work, the honeycomb and tubes composed of fiber in the beetle elytra was analyzed, and a variety of bionic thin-walled honeycomb structures with curved hollow tubes were designed and modeled. The energy absorption ability of the bionic honeycomb structures with different types of tubes under impact loading were calculated by finite element software. The internal energy values and collapse processes of bionic structures were compared and analyzed at different crushing displacements. The parameter study, including wall thickness and impact angle, was carried out in the collapse time range from 0 ms to 8 ms. These results could be applied in developing crush-resistant materials in the field of automotive passive safety.

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Multi-cell energy-absorbing structures with hollow columns inspired by the beetle elytra

Cited by 33 publications

References 50 publications

Structural Design Variations in Beetle Elytra

Structural Design Variations in Beetle Elytra

Multiple Performance Evaluation of Bionic Thin‐Walled Structures with Different Cross Sections considering Complex Conditions

Energy absorption characteristic of bionic lightweight protective structure with curved tubes under impact loading

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