Mechanical properties and energy absorption of composite bio-inspired multi-cell tubes

Wu, Fei; Chen, Yating; Zhao, Shunqiu; Hong, Yihao; Zhang, Zhengrong; Zheng, Shiwei

doi:10.1016/j.tws.2022.110451

Cited by 38 publications

(6 citation statements)

References 53 publications

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“…Tubular structures, a type of 3D structure, are of great importance in many applications, particularly as widely used mechanical components and structures in engineering fields [31]. The cross-sectional form of tubular can vary in a wide range of possibilities, but the most prevalent configuration is the circular shape [32]. In the circular configuration of auxetic tubulars, compression induces shrinkage in the tubular's crosssection, resulting in the stiffening of auxetic unit cells [33].…”

Section: Introductionmentioning

confidence: 99%

Quasi-static crashworthiness behaviour of auxetic tubular structures based on rotating deformation mechanism

Solak,

Orhan

2024

Smart Mater. Struct.

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Auxetic materials have attracted significant interest due to their exceptional mechanical characteristics and distinctive deformation modes. Nevertheless, the practical use of these materials in engineering is constrained by their limited ability to absorb energy. Thus, enhancing the energy absorption (EA) capabilities of auxetic materials is crucial to expand their range of potential applications. In this study, the EA capabilities of auxetic tubular structures with rotating deformation mechanisms are examined, with a specific emphasis on three different perforation shapes: elliptic, peanut, and square, along with their modified versions incorporating stiffeners. The study employs a combination of experimental testing and numerical modelling, utilising ANSYS/LS-DYNA to evaluate various crashworthiness parameters. These parameters include total EA, specific EA, maximum crushing force, and crushing force efficiency, all of which are assessed under quasi-static compression conditions. The research highlights the importance of perforation shape and stiffener incorporation in enhancing crashworthiness. Results show that elliptic perforations exhibit superior EA and stiffened auxetic models outperform conventional ones in terms of crash absorber performance. The presence of stiffeners significantly improves the ability of tubular structures to withstand crushing forces. Furthermore, the study validates the numerical model against experimental findings, demonstrating a high level of agreement in terms of crushing force–displacement, EA, and failure modes. The research provides valuable insights into the design and performance of crashworthy structures and offers potential applications in various fields where impact resistance and EA are critical.

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Section: Introductionmentioning

confidence: 99%

Quasi-static crashworthiness behaviour of auxetic tubular structures based on rotating deformation mechanism

Solak,

Orhan

2024

Smart Mater. Struct.

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“…Currently, biologically inspired designs of biomimetic energy-absorbing structures are mainly categorized as lightweight and high-strength structures or hard on its own structures. 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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“…[20][21][22] Researchers have optimized traditional structures through biomimetic design to enhance the energy absorption of thin-walled tubes. [23][24][25] Throughout millions of years of natural evolution, numerous animals and plants have developed impact-resistant parts or organs, such as bamboo, pine cones, beehives, turtle shells, and bones. Many researchers have mimicked these biological designs to create thin-walled tubes, with most proving to have excellent impact resistance properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of geometric structure and fiber orientation on crashworthiness of honeycomb‐inspired composite thin‐walled tubes

Feng,

Wei,

et al. 2024

Polymer Composites

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This study investigates the crashworthiness of biomimetic composite thin‐walled tubes under quasi‐static axial crushing, focusing on the effects of geometric structure and fiber orientation. The thin‐walled tubes, inspired by honeycomb structures, were manufactured using carbon fiber composites through multi‐cavity preform mold method. Quasi‐static crushing tests and CT scanning observation were conducted to characterize the mechanical response, crashworthiness mechanisms and energy absorption capacity of the thin‐walled tubes. Results demonstrated excellent energy absorption capacities across all configurations, with the C‐0/45 configuration achieving the highest specific energy absorption at 115.03 kJ/kg. The optimal crushing energy absorption process for thin‐walled tubes involves achieving high peak loads and maintaining high load levels. Sustaining high loads requires progressive and stable damage without the formation of extensive intermediate cracks between different plies (indicative of strong interlaminar shear strength). The structural integrity of the uncrushed sections must remain intact without significant damage during the crushing process. Fiber orientation parallel to the loading direction enhances peak load levels and interlaminar shear strength between plies, but may compromise circumferential stiffness and structural stability. The influence of geometric configuration is primarily manifested in the progressive and stable crushing phase, where the tube requires sufficient space to accumulate its own debris without causing damage to the uncrushed thin‐walled structure.Highlights Structures and fiber orientation boost crashworthiness in biomimetic composite tubes. Biomimetic structures were produced using a multi‐cavity preform mold method. CT scans were conducted to characterize the energy absorption mechanisms. Composite tubes demonstrated excellent energy absorption capacity of 115 kJ/kg.

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Mechanical properties and energy absorption of composite bio-inspired multi-cell tubes

Cited by 38 publications

References 53 publications

Quasi-static crashworthiness behaviour of auxetic tubular structures based on rotating deformation mechanism

Quasi-static crashworthiness behaviour of auxetic tubular structures based on rotating deformation mechanism

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

Effect of geometric structure and fiber orientation on crashworthiness of honeycomb‐inspired composite thin‐walled tubes

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