567 citations · 1.7k across the 25 of their papers we have counts for
6 papers · 1 filter
Degenerate weakly nonlinear elastic plane waves
Włodzimierz Domański, Andrew N. Norris
Weakly nonlinear plane waves are considered in hyperelastic crystals. Evolution equations are derived at a quadratically nonlinear level for the amplitudes of quasi-longitudinal an…
Approximation of the acoustic radiation impedance of a cylindrical pipe
Fabrice Silva, Philippe Guillemain, Jean Kergomard +2
Useful approximation formulae for radiation impedance are given for the reflection coefficients of both infinitely flanged and unflanged rigid-walled cylindrical ducts. The express…
Acoustic metafluids
Andrew N. Norris
Acoustic metafluids are defined as the class of fluids that allow one domain of fluid to acoustically mimic another, as exemplified by acoustic cloaks. It is shown that the most ge…
Acoustic cloaking theory
Andrew N. Norris
An acoustic cloak envelopes an object so that sound incident from all directions passes through and around the cloak as though the object were not present. A theory of acoustic clo…
Nonlinear evolution equations for degenerate transverse waves in anisotropic elastic solids
Wlodzimierz Domanski, Andrew N. Norris
Transverse elastic waves behave differently in nonlinear isotropic and anisotropic media. Quadratically nonlinear coupling in the evolution equations for wave amplitudes is not pos…
Acoustic cloaking in 2D and 3D using finite mass
Andrew N. Norris
Fundamental features of rotationally symmetric acoustic cloaks with anisotropic inertia are derived. Two universal relations are found to connect the radial and transverse phase sp…