Pomelo Peel-Inspired 3D-Printed Porous Structure for Efficient Absorption of Compressive Strain Energy

Abstract The porous structure in pomelo peel is believed to be responsible for the protection of its fruit from damage during free falling a tree. quantitative understanding relationship between deformation behavior and could pave way design structures efficient energy absorption. Here, universal feature pore distribution peels along radial direction extracted three varieties pomelos, which shows strong correlation under compression. Guided by found peels, polyether-ether-ketone (PEEK) cube additively manufactured possesses highest ability absorb compression as compared non-pomelo-inspired geometries, further confirmed finite element simulation. nature-optimized revealed here guide lightweight high-energy-dissipating materials/devices.