Mechanical behavior of Canarium pyrene and study of bioinspired multilocular tube structure

Canarium pyrene exhibits a distinctive multilocular structure. Quasi-static compression tests were conducted to evaluate its mechanical properties and fracture patterns. A finite element model was developed to simulate fracture behavior using both brittle and ductile material, revealing that brittle material closely replicates the actual failure mode. The influence of the Central Vascular Bundle Channel (CVBC) on mechanical behavior was also investigated, demonstrating that CVBC-integrated structures exhibit isotropic mechanical performance. Inspired by the cross-sectional characteristics of Canarium pyrene, a novel bioinspired structure was proposed. It was found that the bioinspired structure exhibits superior Specific Energy Absorption (SEA), compared with traditional structures. Its Crush Force Efficiency (CFE) is lower than traditional structures with brittle material, but it outperformed them with ductile material.