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Published on: September 26, 2014
The influence of random microstructure on wave propagation through heterogeneous media
Yilang Song1, Inna M Gitman1, William J Parnell2
11Department of Mechanical Engineering, University of Sheffield, Sheffield, UK.
Abstract:
In this paper the influence of mechanical and geometrical properties, both deterministic and stochastic in nature, of a heterogeneous periodic composite material on wave propagation has been analysed in terms of the occurrence of stop-bands. Numerical analyses have been used to identify those parameters that have the most significant effect on the wave filtering properties of the medium. A striking conclusion is that randomness in geometrical properties has a much larger effect than randomness in mechanical properties.
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