64 citations · 83 across the 6 of their papers we have counts for
6 papers
Two-dimensional Phononic Crystals with Acoustic-Band Negative Refraction
Hossein Sadeghi, Sia Nemat-Nasser
A two-dimensional phononic crystal (PC) can exhibit longitudinal-mode negative energy refraction on its lowest (acoustical) frequency pass band. The effective elastodynamic propert…
Acoustic Filter Design Using Temperature Tuning
Hossein Sadeghi, A. Srivastava, A. V. Amirkhizi +1
The material properties selection for designing acoustic filters with optimal performance over a range of frequencies requires considerable effort to fabricate and test laboratory…
Optimal Design of Layered Periodic Composites for Mitigation of Impact-Induced Elastic Waves
Hossein Sadeghi, Sia Nemat-Nasser
A systematic method for optimal design of layered periodic composites for mitigation of impact-induced shock waves is presented. Frequency spectrum of a pulse with a sharp rise-tim…
Refraction Characteristics of Phononic Crystals
Sia Nemat-Nasser
The refraction properties of phononic crystals are revealed by examining the anti-plane shear waves in doubly periodic elastic composites with unit cells containing rectangular and…
On the Limit and Applicability of Dynamic Homogenization
Ankit Srivastava, Sia Nemat-Nasser
Recent years have seen considerable research success in the field of dynamic homogenization which seeks to define frequency dependent effective properties for heterogeneous composi…
Mixed-variational formulation for phononic band-structure calculation of arbitrary unit cells
Ankit Srivastava, Sia Nemat-Nasser
This paper presents phononic band-structure calculation results obtained using a mixed variational formulation for 1-, and 2-dimensional unit cells. The formulation itself is prese…