On the Young's modulus of a auxetic composite structure

摘要

In this paper, the behavior of auxetic composites is interpreted in the light of Cosserat elasticity which admits degrees of freedom not present in the classical elasticity: The rotation of points in the material, and a couple per unit area or the couple stress. The prediction of the Young's modulus is developed for a laminated periodic material made up of alternating aluminum and auxetic material, by using the Becus homogenization technique.