Investigation on crashworthiness and mechanism of a bionic antler-like gradient thin-walled structure

Wei, Zhiting; Zhang, Xu; Zheng, Yang

doi:10.1088/1748-3190/acad52

Cited by 7 publications

(4 citation statements)

References 48 publications

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“…Helmets designed with PSC structures could absorb a significant portion of the energy during impact, and the incorporation of internal voids and thin walls in the structure serves to reduce the helmet's weight, making it more convenient for portability. Additionally, the PSC structure could be employed in the design of automotive energy-absorbing boxes [71]. When a car experiences a collision, the energy-absorbing box must absorb a significant portion of the energy generated by the impact.…”

Section: Discussionmentioning

confidence: 99%

“…It is particularly noteworthy that, when using AA6061 and 316L, the PSC3 structure achieved exceptionally high crushing force efficiencies of 0.90 and 0.91, respectively, approaching the performance of an ideal energy absorber. energy-absorbing boxes [71]. When a car experiences a collision, the energy-absorbing box must absorb a significant portion of the energy generated by the impact.…”

Section: Applicationmentioning

confidence: 99%

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Investigation of Structural Energy Absorption Performance in 3D-Printed Polymer (Tough 1500 Resin) Materials with Novel Multilayer Thin-Walled Sandwich Structures Inspired by Peano Space-Filling Curves

Lin,

Zhang,

Chen

et al. 2023

Polymers

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Inspired by Peano space-filling curves (PSCs), this study introduced the space-filling structure design concept to novel thin-walled sandwich structures and fabricated polymer samples by 3D printing technology. The crushing behaviors and energy absorption performance of the PSC multilayer thin-walled sandwich structures and the traditional serpentine space-filling curve (SSC) multilayer thin-walled sandwich structures were investigated using quasi-static compression experiments and numerical analysis. Taking the initial peak crushing force (IPF), specific energy absorption (SEA), and crushing force efficiency (CFE) as evaluation criteria, the effects of geometric parameters, including the curve order, layer height, septa thickness, and wall thickness, on energy absorption performance were comprehensively examined. The results indicated that the energy absorption capacity of the PSC structure was significantly enhanced due to its complex hierarchy. Specifically, the second-order PSC structure demonstrated a 53.2% increase in energy absorption compared to the second-order SSC structure, while the third-order PSC structure showed more than a six-fold increase in energy absorption compared to the third-order SSC structure. Furthermore, a multi-objective optimization method based on the response surface method and the NSGA-II algorithm were employed to optimize the wall thickness and layer height of the proposed novel PSC structures. The optimal solutions suggested that a reasonable wall thickness and layer height were two important factors for designing PSC structures with better energy absorption performance. The findings of this study provide an effective guide for using the space-filling concept with Peano curves for the design of a novel polymer thin-walled energy absorber with high energy absorption efficiency.

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Section: Discussionmentioning

confidence: 99%

Section: Applicationmentioning

confidence: 99%

Investigation of Structural Energy Absorption Performance in 3D-Printed Polymer (Tough 1500 Resin) Materials with Novel Multilayer Thin-Walled Sandwich Structures Inspired by Peano Space-Filling Curves

Lin,

Zhang,

Chen

et al. 2023

Polymers

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“…Wang et al introduced a novel multi-cell tubular structure inspired by the glass sponge skeleton, demonstrating superior mechanical properties and energy absorption capacity [16]. Wei et al designed a size-gradient thin-walled structure mimicking an impact-resistant antler, showing exceptional crashworthiness performance with high specific energy absorption and efficiency [17].…”

Section: Introductionmentioning

confidence: 99%

Multiscale Characterization and Biomimetic Design of Porcupine Quills for Enhanced Mechanical Performance

Liu,

Wang,

Zhao

et al. 2024

Materials

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The mechanical properties of porcupine quills have attracted the interest of researchers due to their unique structure and composition. However, there is still a knowledge gap in understanding how these properties can be utilized to design biomimetic structures with enhanced performance. This study delves into the nanomechanical and macro-mechanical properties of porcupine quills, unveiling varied elastic moduli across different regions and cross sections. The results indicated that the elastic moduli of the upper and lower epidermis were higher at 8.13 ± 0.05 GPa and 7.71 ± 0.14 GPa, respectively, compared to other regions. In contrast, the elastic modulus of the mid-dermis of the quill mid-section was measured to be 7.16 ± 0.10 GPa. Based on the micro- and macro-structural analysis of porcupine quills, which revealed distinct variations in elastic moduli across different regions and cross sections, various biomimetic porous structures (BPSs) were designed. These BPSs were inspired by the unique properties of the quills and aimed to replicate and enhance their mechanical characteristics in engineering applications. Compression, torsion, and impact tests illustrated the efficacy of structures with filled hexagons and circles in improving performance. This study showed enhancements in maximum torsional load and crashworthiness with an increase in filled structures. Particularly noteworthy was the biomimetic porous circular structure 3 (BPCS_3), which displayed exceptional achievements in average energy absorption (28.37 J) and specific energy absorption (919.82 J/kg). Finally, a response surface-based optimization method is proposed to enhance the design of the structure under combined compression-torsion loads, with the goal of reducing mass and deformation. This research contributes to the field of biomimetics by exploring the potential applications of porcupine quill-inspired structures in fields such as robotics, drive shafts, and aerospace engineering.

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“…Designs inspired by lightweight and high-strength biological structures include honeycombs [45], plant stems [46][47][48][49][50][51], bird feather shafts [52,53], insect Wings [54,55], spider webs [56,57], and grapefruit peels [58]. Designs inspired by their own hard biological structures include animal horns [59,60], hooves [61], and bone skins [62], human tibiae [40], bamboo [35,63], conchs [37], mantis shrimp pincers [64], and woodpecker beaks [65].…”

Section: Introductionmentioning

confidence: 99%

Bionic design of thin-walled bilinear tubes with excellent crashworthiness inspired by glass sponge structures

Liu,

Zou,

et al. 2024

Bioinspir. Biomim.

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In order to enhance energy absorption, this study draws inspiration from the diagonal bilinear robust square lattice structure found in deep-sea glass sponges, proposing a design for thin-walled structures with superior folding capabilities and high strength-to-weight ratio. Firstly, the crashworthiness of bionic glass sponge tube (BGSTO) is compared with that of equal-wall-thickness equal-mass four-X tube through both experiments and simulations, and it is obtained that the specific energy absorption of BGSTO is increased by 78.64%. And the crashworthiness of BGSTO is also most significant compared to that of multicellular tubes with the similar number of crystalline cells. Additionally, we found that the double-line spacing of the glass sponge can be freely adjusted without changing the material amount. Therefore, based on BGSTO, we designed two other double-line structures, BGSTA and BGSTB. Then with equal wall thickness and mass as a prerequisite, this study proceeds to design and compare the energy absorption properties of three bilinear thin-walled tubes in both axial and lateral cases. The deformation modes and crashworthiness of the three types of tubes with variable bilinear spacing (βO/A/B ) are comparatively analysed. The improved complex proportional assessment (COPRAS) synthesis decision is used to obtain that BGSTO exhibits superior crashworthiness over the remaining two kinds of tubes. Finally, a surrogate model is established to perform multi-objective optimization on the optimal bilinear configuration BGSTO selected by the COPRAS method.

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Investigation on crashworthiness and mechanism of a bionic antler-like gradient thin-walled structure

Cited by 7 publications

References 48 publications

Investigation of Structural Energy Absorption Performance in 3D-Printed Polymer (Tough 1500 Resin) Materials with Novel Multilayer Thin-Walled Sandwich Structures Inspired by Peano Space-Filling Curves

Investigation of Structural Energy Absorption Performance in 3D-Printed Polymer (Tough 1500 Resin) Materials with Novel Multilayer Thin-Walled Sandwich Structures Inspired by Peano Space-Filling Curves

Multiscale Characterization and Biomimetic Design of Porcupine Quills for Enhanced Mechanical Performance

Bionic design of thin-walled bilinear tubes with excellent crashworthiness inspired by glass sponge structures

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