As widely discussed in the technical literature, the micro-structure of the Representative Unit Cell (RUC) may influence both the static and the dynamic response of square lattice materials. This is especially relevant if a non-uniform stresses and strains variation emerges at the local scale. With reference to a simple parametric microstructural topology, this work presents the main mechanical effects on the dynamic response of the lattice as the constitutive properties, the geometric properties, the mass density distribution vary over the RUC 2D spatial configuration. The frequency band gaps are detected, thus extending previous literature results on the same subject.
Frequency band gaps for 2D lattice structures
Orefice A.;Amendola A.;Penna R.;Mancusi G.;Feo L.
2017
Abstract
As widely discussed in the technical literature, the micro-structure of the Representative Unit Cell (RUC) may influence both the static and the dynamic response of square lattice materials. This is especially relevant if a non-uniform stresses and strains variation emerges at the local scale. With reference to a simple parametric microstructural topology, this work presents the main mechanical effects on the dynamic response of the lattice as the constitutive properties, the geometric properties, the mass density distribution vary over the RUC 2D spatial configuration. The frequency band gaps are detected, thus extending previous literature results on the same subject.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
