負のポアソン比を持つ多面体ブロック構造のモデリングと力学特性評価

抄録

In this study, we propose the polyhedral block structure with negative Poisson's ratios in the in-plane and out-of-plane directions, which is created by reference to the orthotropic open-cell structure developed in our previous research. We formulate the two types of the structural model with a single and two degrees of freedom, and analyze mathematically and numerically the equilibrium paths as a function of the two geometric and rotational parameters in order to evaluate their mechanical properties including three-dimensional auxetic effects.