(PK1, PK2, Cauchy) The definition to be used for calculating the stresses in the gridpoints and for homogenization. Supports 1st Piola-Kirchoff (PK1), 2nd Piola-Kirchoff (PK2) and Cauchy (recommended) ...

Abstract: This work discusses the theoretical definition and practical application of different approaches to metamaterial homogenization. The categorization of the various approaches is based on the ...