Journal article Open Access

Band structure analysis of leaky Bloch waves in 2D phononic crystal plates

Mazzotti, Matteo; Miniaci, Marco; Bartoli, Ivan

A hybrid Finite Element-Plane Wave Expansion method is presented for the
band structure analysis of phononic crystal plates with two dimensional lattice
that are in contact with acoustic half-spaces. The method enables the computation
of both real (propagative) and imaginary (attenuation) components of
the Bloch wavenumber at any given frequency.
Three numerical applications are presented: a benchmark dispersion analysis
for an oil-loaded Titanium isotropic plate, the band structure analysis of a waterloaded
Tungsten slab with square cylindrical cavities and a phononic crystal
plate composed of Aurum cylinders embedded in an epoxy matrix.

Files (227.2 kB)
Name Size
227.2 kB Download
Views 28
Downloads 164
Data volume 37.3 MB
Unique views 26
Unique downloads 158


Cite as