292 citations · 1.6k across the 40 of their papers we have counts for
6 papers · 1 filter
On the role of the microstructure in the deformation of porous solids
Sansit Patnaik, Mehdi Jokar, Wei Ding +1
This study explores the role that the microstructure plays in determining the macroscopic static response of porous elastic continua and exposes the occurrence of position-dependen…
Variable-Order Fracture Mechanics and its Application to Dynamic Fracture
Sansit Patnaik, Fabio Semperlotti
This study presents the formulation, the numerical solution, and the validation of a theoretical framework based on the concept of variable-order mechanics and capable of modeling…
Double-zero-index structural waveguides
Hongfei Zhu, Fabio Semperlotti
We report on the theoretical and experimental realization of a double-zero-index elastic waveguide and on the corresponding acoustic cloacking and supercoupling effects. The propos…
Anomalous refraction of acoustic guided waves in solids with geometrically tapered metasurfaces
Hongfei Zhu, Fabio Semperlotti
The concept of metasurface has recently opened new exciting directions to engineer the refraction properties in both optical and acoustic media. Metasurfaces are typically designed…
Phononic Thin Plates with Embedded Acoustic Black Holes
Hongfei Zhu, Fabio Semperlotti
We introduce a class of two-dimensional non-resonant single-phase phononic materials and investigate its peculiar dispersion characteristics. The material consists of a thin plate-…
Achieving Selective Damage Interrogation and Sub-Wavelength Resolution in Thin Plates with Embedded Metamaterial Acoustic Lenses
Fabio Semperlotti, Hongfei Zhu
In this study, we present an approach to ultrasonic beamforming and high resolution identification of acoustic sources having critical implications for structural health monitoring…