Fiber-Complected and Reeled Microstructure of Insect Cuticle and Biomimetic Fabrication
A scanning electron microscope (SEM) was used for the observation of the microstructures of a chafer cuticle. It showed that the cuticle is a kind of biocomposite consisting of complected chitin-fiber plies and sclerous protein matrix. The observation also showed that there are many holes in the cuticle and the complected fibers continuously reel these holes forming a kind of fiber-complected and reeled microstructure. Based on the SEM observation, a kind of biomimetic composite laminate with complected and reeled structure was fabricated with a special mould and process. The ultimate strength of the obtained biomimetic composite laminate was experimentally investigated and compared with that of the conventional drilling-hole composite laminate. It showed that the ultimate strength of the biomimetic composite laminate is markedly larger than that of the drilling-hole composite laminate.
Jianhong Zhao, Masanori Kunieda, Guilin Yang and Xue-Ming Yuan
B. Chen et al., "Fiber-Complected and Reeled Microstructure of Insect Cuticle and Biomimetic Fabrication", Key Engineering Materials, Vols. 447-448, pp. 639-642, 2010