In this paper, we investigate the formation of band-gaps and localisation phenomena in an elastic strip nearly disintegrated by an array of transverse cracks. We analyse the eigenfrequencies of finite, strongly damaged, elongated solids with reference to the propagation bands of an infinite strip with a periodic damage.
The paper presents a systematic study of dispersive waves in an elastic chiral lattice. Chirality is introduced through gyroscopes embedded into the junctions of a doubly periodic lattice. Bloch-Floquet waves are assumed to satisfy the quasi-periodicity conditions on the elementary cell.
I wanna get the dispersion relation of acoustic crystals in ABAQUS, so far as I know, the frequencies can be obtained by applying different wave vectors in the IBZ, but I dont know how to opperate in ABAQUS, in what way can we simulate the wave vectors (or the cooresponding wave length) . By applying force or displacement, or acceleration ?
Attacthed, should I model the whole structure or just the 1st BZ? If the 1st BZ is employed, should the periodic semmetric B.C. be considered in my model?
Any suggestion is appreciated!
The full articles selected for this Virtual Special Issue are freely available until 28 May 2013, from the Journal Homepage
Research highlights:
• Outdoor air quality is one of the major environmental problems today
• Micro-scale pollutant dispersion covers the building scale and the meteorological micro-scale
As you may know wave propagation in circular cylinders is dispersive. As shown by Pochhammer, there
could be several different modes propagating in an infinite cylinder with
different wave speeds. I'm modeling wave propagation in a finite 3D circular cylinder in
How does one calculate the phonon dispersion relations from the output of a molecular dynamics simuation?
I have successfully calculated the complete phonon density of states using a fourier transform of the velocity autocorrelation function, but I am still confused as to how to calculate the particular phonon dispersion curves.
Thank you.
