Auxetic metamaterials subjected to dynamic loadingsAuxetic metamaterials subjected to dynamic loadings Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2024-02-272022enMaterials with negative Poisson’s ratio are called auxetics and they present enhanced properties (e.g. damping, indentation resistance, fracture toughness and impact resistance) under external loadings. The auxetic properties are derived from peculiar-shaped microstructures, such as starshaped frames. In the present investigation, several applications are studied using auxetic microstructures. Finite element models are developed for dynamic analysis. First, an application related to auxetic microstructures, for the core of structural panels, is presented. Next, the use of auxetic materials in armor plates in dynamic bullet penetration problems is considered. Finally, a numerical simulation for wind turbines blades, with aluminum foam, polymeric foam and the proposed auxetic material is carried out. The numerical results demonstrate that the use of auxetic microstructures results in improved dynamic response of the system in comparison to conventional materials.The research of the first author is co-financed by Greece and the European Union (European Social Fund- ESF) through the Operational Programme “Human Resources Development, Education and Lifelong Learning” in the context of the project “Reinforcement of Postdoctoral Researchers - 2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation IKY.http://creativecommons.org/licenses/by/4.0/Theoretical and Applied Mechanics491Tairidis_et_al_Theor. Appl. Mech._49(1)_2022.pdfChania [Greece]Library of TUC2024-02-27application/pdf5.6 MBfree Tairidis Georgios Ταϊριδης Γεωργιος Ntintakis Ioannis Ντιντακης Ιωαννης Drosopoulos Georgios Δροσοπουλος Γεωργιος Koutsianitis Panagiotis Κουτσιανιτης Παναγιωτης Stavroulakis Georgios Σταυρουλακης Γεωργιος Serbian Soc Mechanics Auxetic materials Frequency analysis Dynamic analysis Negative Poisson’s ratio