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Band gap regions on material with combined auxetic microstructures, using finite element method

Chinis Dimitrios

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Year 2022
Type of Item Master Thesis
Bibliographic Citation Δημήτριος Χήνης, "Εύρεση περιοχών χάσματος συχνότητας, σε υλικά που αποτελούνται από συνδυασμούς αυξητικών μικροδομών, με χρήση πεπερασμένων στοιχείων.", Μεταπτυχιακή Διατριβή, Σχολή Μηχανικών Παραγωγής και Διοίκησης, Πολυτεχνείο Κρήτης, Χανιά, Ελλάδα, 2022.
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To manufacture and achieve the optimal operational ability of a product, the appropriate material selection is mandatory. The mechanical properties of the final product are inextricably linked to those of the material that is to be used. In industry, a common goal is to manufacture products that have the maximum possible resilience to mechanical stresses, while minimizing their mass. Auxetic materials’ behavior is very satisfying achieving this goal and as a result, they are preferable over conventional materials. This study focuses on the discovery and analysis of the band gaps that occur after a wave propagation in a material with combined auxetic microstructure. The process will require the use of finite element analysis methodology and there will be a comparison between multiple variations in the layering of the material, to see where the band gaps are generated and how they are affected by the geometry microstructure.

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