抄録
The nonlinear mechanical behavior of cellular solids is mainly caused by the buckling of cells. We here develop a multi-scale computational method for periodic cellular solids with buckling. However, theoretical studies so far reported some difficulties for choosing appropriate models of microstructures that minimize non-convex potential functionals. Therefore, we here discuss appropriate models of unit cell for the local unstable problems by symmetry of the system and some numerical examples of micro-scale problems by the presented method.
