Peer-reviewed veterinary case report
Crash safety of bio-inspired multi-cell concave tubes under impact
By Deng X et al.·2026·School of Mechanical and Resource Engineering, China·View original on Europe PMC →
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Original publication title: Crashworthiness Analysis of Bio-Inspired Multi-Cell Concave Tubes.
- Species:
- horse
Plain-English summary
This study looks at a new type of tube inspired by horse tail grass that is designed to be strong in crashes. Researchers tested how well this tube holds up when hit and found that it can absorb energy better than other similar structures without increasing the force it takes to crush it at first. Specifically, this new tube showed a 41% improvement in how efficiently it can handle crushing forces compared to other tubes with the same design. They also found that changing the design slightly could lead to a 21% increase in its efficiency while keeping the weight the same. Overall, the new tube design appears to be more effective in handling impacts.
Abstract
This study presents a novel bio-inspired multi-cell concave tube (BMCT) inspired by the biomimicry of horse tail grass plants. Following the simulation validation, a comprehensive investigation into the crashworthiness of this structure under axial impact was conducted. Concurrently, both experimental and theoretical analyses were employed to substantiate the reliability of the simulation data. Comparative results concerning crashworthiness indicate that, relative to other structures, the BMCT maintains a relatively constant initial peak force while simultaneously enhancing energy absorption capacity at equivalent mass. Specifically, when compared to corresponding hierarchical multi-cell tubes with the same number of cells, the BMCT exhibits a 41.04% increase in crush force efficiency (CFE) while preserving a relatively unchanged initial peak crushing force (IPCF). Additionally, variations in hierarchical levels yield a 21.22% increase in CFE at the same mass.
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Search related cases →Original publication on Europe PMC: https://europepmc.org/article/MED/41744567