Forum Acusticum 2026

Session

A10.08 Adaptive, Time-Varying, and Topological Acoustic and Elastic Metamaterials

A10.08

11 Sept 2026, 09:20

Conveners

A10.08 Adaptive, Time-Varying, and Topological Acoustic and Elastic Metamaterials: S067

• Gregory Chaplain (University of Exeter)
• Vinicius Dal Poggetto
• Fabio Nistri (Politecnico di Torino)

4087. Diatom-inspired phononic pseudocrystal insulators (FA2026/429)

Chiara Gazzola (Politecnico di Milano)

11/09/2026, 09:20

A10 Materials and Metamaterials

Diatoms are unicellular microorganisms whose silica exoskeletons, known as frustules, exhibit extraordinary hierarchical porosity across micro- and nanoscales. These natural structures combine mechanical strength, lightweight characteristics, and photonic functionalities. Despite the extensive investigation of their optical behavior, the elastodynamic properties of frustules and their...

4089. Elastic waves in continuosly defomring media (FA2026/850)

Fabio Nistri (Politecnico di Torino)

11/09/2026, 09:40

A10 Materials and Metamaterials

This work revisits wave propagation in deformable solids by extending the classical acoustoelastic framework to regimes where deformation evolves in both space and time. In standard acoustoelasticity, waves propagate through a pre-stressed but static medium, and their speed is modified by the underlying deformation. However, this approach breaks down when the material configuration itself...