The role of Rayleigh Waves in Granular Solids

Wave propagation in granular solids is found to have at least two regimes: a low-frequency ballistic signal and a high-frequency diffusive tail. The latter is attributed to granules clapping or elastic waves within the granules themselves. The low frequency front is traditionally attributed to the rigid-body motion of particles and their interactions via quasi-static contact forces. We present results obtained with experimental and numerical models indicating that the low-frequency ballistic wavefront is itself the result of surface waves in the granules. We find surface waves to be the principal mechanism of energy transmission.


Editor(s):
Yu, A
Dong, K
Yang, R
Luding, S
Published in:
Powders And Grains 2013, 1542, 575-576
Presented at:
7th International Conference on Micromechanics of Granular Media (Powders and Grains), Sydney, AUSTRALIA, JUL 08-12, 2013
Year:
2013
Publisher:
Melville, Amer Inst Physics
ISSN:
0094-243X
ISBN:
978-0-7354-1166-1
Keywords:
Laboratories:




 Record created 2013-10-01, last modified 2018-03-17


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