Structure Optimality with Biomimetics of the Fore-wing of Beetles

摘要

To obtain new ideas on improved composite material structure, the microstructures of the fore-wing of Allomyrina dichotoma (Linne) and Prosopocoilus inclinatus (Motschulsky) have been investigated using scanning electron microscopy. As a result, the structural characteristics of the fore wing of beetles were made clear and the microstructural models were proposed. The fore-wing has honeycomb structures that are made up of cell membrane and trabeculae. The shape and size of the trabecula depend on the types of beetles and the fore-wing location. It was found that the trabecular cross section was mainly cylindrical and consisted of two parts, i.e., the central part with protein and the outside part with cylindrical chitin fibers layers. The chitin fibers were of different orientation angles and were connected to the upper and lower laminae in the fore-wing of beetles. The results that have been found here should be of significance for both the light weight design and strength of composite structures.