The influence of random microstructure on wave propagation through heterogeneous media
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- 作者：Yilang Song ; Inna M. Gitman ; William J. Parnell…
- 关键词：Stop ; band ; Wave filter ; Composite material ; Laminate ; Randomness ; Wave propagation
- 刊名：International Journal of Fracture
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：204
- 期：1
- 页码：115-120
- 全文大小：655KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Characterization and Evaluation of Materials; Classical Mechanics; Civil Engineering; Automotive Engineering; Mechanical Engineering;
- 出版者：Springer Netherlands
- ISSN：1573-2673
- 卷排序：204
文摘
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.