29 citations · 30 across the 2 of their papers we have counts for
6 papers
Evanescent Wave Boundary Layers in Metamaterials and Sidestepping them through a Variational Approach
Ankit Srivastava, John R. Willis
All metamaterial applications are based upon the idea that extreme material properties can be achieved through appropriate dynamic homogenization of composites. This homogenization…
Green's function for longitudinal shear of a periodic laminate
John Willis
The reasoning is a slight extension of that employed in my article [1] and its further development [2]. A formal solution to the title problem is presented for a general periodic l…
Some thoughts on dynamic effective properties -- a working document
John Willis
The main purpose of this work is to address the question of the utility of "effective constitutive relations" for problems in dynamics. This is done in the context of longitudinal…
A study of obliquely propagating longitudinal shear waves in a periodic laminate
John Willis
The basic purpose of this work is to demonstrate, by quite simple and explicit calculation, the possibility that a simple laminate composed of ordinary materials can display the ki…
Corrugation crack front waves
J. R. Willis, N. V. Movchan, A. B. Movchan
The paper presents a model of a dynamic crack with a wavy surface. So far, theoretical analysis of crack front waves has been performed only for in-plane perturbations of the crack…
A dynamical interpretation of flutter instability in a continuous medium
Andrea Piccolroaz, Davide Bigoni, John R. Willis
Flutter instability in an infinite medium is a form of material instability corresponding to the occurrence of complex conjugate squares of the acceleration wave velocities. Althou…