Original paper(Vol.51 No.5 pp.501)

Solid-Air Biomimetic Composites Designed by Load Dispersion Mechanism of Cancellous Bone Structure -The Effect of the Bulk Modulus and the Dimension-

Tsutao KATAYAMA, Masatoshi MIKI, Takashi NOZATO and Michiko KIDO

Abstract:The purpose of this research is likely to apply biomimetic designed composites to artificial structure. Looking at the bio-joint mechanism, the solid-fluid composite structure of cancellous bone is likely to play a great important role in the load transmission. Therefore, the solid-fluid composite structure of the cancellous bone was modeled to the solid-air biomimetic composites with aluminum honeycomb. The numerical analysis was carried out using the FE model, and it was clarified that the bulk modulus of air and the dimensions become effective for load dispersion. Consequently, the bulk modulus and the dimensions are the important parameters in the design of solid-air composite with the excellent load dispersion characteristic.

Key Words:Biomimetic Design, Solid-Air Composites, Load Dispersion, Honeycomb Structure