Auxetic metamaterials subjected to dynamic loadings

Materials with negative Poisson?s ratio are called auxetics and they present enhanced properties (e.g. damping, indentation resistance, fracture toughness impact resistance) under external loadings. The auxetic derived from peculiar-shaped microstructures, such as starshaped frames. In the investigation, several applications studied using microstructures. Finite element models developed for dynamic analysis. First, an application related to core of structural panels, is presented. Next, use materials in armor plates bullet penetration problems considered. Finally, a numerical simulation wind turbines blades, aluminum foam, polymeric foam proposed material carried out. results demonstrate that microstructures improved response system comparison conventional materials.