4 papers
Multiple Band-Gaps through the Coupling of Unit Cells from the Same Metamaterial: the Dual Cell method
Plastiras Demetriou
This study investigates how the coupling of two unit cells belonging to the same mechanical metamaterial into a dual unit cell configuration, can produce a new metamaterial with en…
Transmissibility, boundary-guided waves, and representative unit cell choice in finite-sized metamaterials
Plastiras Demetriou, Gianluca Rizzi
The implications of selecting different unit cells are often overlooked in both direct studies of microstructured materials and their homogenized equivalents. Investigating the eff…
Effective interface forces to model boundary effects in a finite-size metamaterial through the reduced relaxed micromorphic model
Plastiras Demetriou, Jendrik Voss, Angela Madeo
We use the reduced relaxed micromorphic model (RRMM) to capture the effective "bulk" dynamical response of finite size metamaterial specimens made out of a Labyrinthine unit cell.…
Reduced relaxed micromorphic modeling of harmonically loaded metamaterial plates: investigating boundary effects in finite-size structures
Plastiras Demetriou, Gianluca Rizzi, Angela Madeo
In this paper, we propose an approach for describing wave propagation in finite-size microstructured metamaterials using a reduced relaxed micromorphic model. This method introduce…