Abstract
The porous structure in pomelo peel is believed to be responsible for the protection of its fruit from damage during the free falling from a tree. The quantitative understanding of the relationship between the deformation behavior and the porous structure could pave the way for the design of porous structures for efficient energy absorption. Here, a universal feature of pore distribution in pomelo peels along the radial direction is extracted from three varieties of pomelos, which shows strong correlation to the deformation behavior of the peels under compression. Guided by the porous design found in pomelo peels, porous polyether-ether-ketone (PEEK) cube is additively manufactured and possesses the highest ability to absorb energy during compression as compared to the non-pomelo-inspired geometries, which is further confirmed by the finite element simulation. The nature-optimized porous structure revealed here could guide the design of lightweight and high-energy-dissipating materials/devices.
Original language | English |
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Pages (from-to) | 448-457 |
Number of pages | 10 |
Journal | Journal of Bionic Engineering |
Volume | 19 |
Issue number | 2 |
DOIs | |
State | Published - Mar 2022 |
Bibliographical note
Funding Information:This work was supported by the National Key R&D Program of China (2018YFB1105100) and National Natural Science Foundation of China (51973165).
Publisher Copyright:
© 2021, The Author(s).
Keywords
- 3D printing
- Bionic design
- Energy absorption
- Pomelo peel
- Porous structure
ASJC Scopus subject areas
- Bioengineering
- Biophysics
- Biotechnology