33 citations · 61 across the 3 of their papers we have counts for
4 papers · 1 filter
Level Repulsion and Band Sorting in Phononic Crystals
Yan Lu, Ankit Srivastava
In this paper we consider the problem of avoided crossings (level repulsion) in phononic crystals and suggest a computationally efficient strategy to distinguish them from normal c…
Negative Refraction, Beam Steering, Mode Switching, and High-pass Filtering in a 1-D Periodic Laminate
Ankit Srivastava
In this paper we show that a 1-D phononic crystal (laminate) can exhibit metamaterial wave phenomenon which is traditionally associated with 2-, and 3-D crystals. Moreover, due to…
Variational Methods For Phononic Calculations
Yan Lu, Ankit Srivastava
Three fundamental variational principles used for solving elastodynamic eigenvalue problems are studied within the context of elastic wave propagation in periodic composites (phono…
Universal Theorems for Total Energy of the Dynamics of Linearly Elastic Heterogeneous Solids
Ankit Srivastava, Sia Nemat-Nasser
In this paper we consider a sample of a linearly elastic heterogeneous composite in elastodynamic equilibrium and present universal theorems which provide lower bounds for the tota…