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- Title
Evolution of full phononic band gaps in periodic cellular structures.
- Authors
Wormser, Maximilian; Warmuth, Franziska; Körner, Carolin
- Abstract
Cellular materials not only show interesting static properties, but can also be used to manipulate dynamic mechanical waves. In this contribution, the existence of phononic band gaps in periodic cellular structures is experimentally shown via sonic transmission experiment. Cellular structures with varying numbers of cells are excited by piezoceramic actuators and the transmitted waves are measured by piezoceramic sensors. The minimum number of cells necessary to form a clear band gap is determined. A rotation of the cells does not have an influence on the formation of the gap, indicating a complete phononic band gap. The experimental results are in good agreement with the numerically obtained dispersion relation.
- Subjects
BAND gaps; PIEZOELECTRIC ceramics; DETECTORS; PHONONS; ELECTRONIC band structure; ENERGY-band theory of solids
- Publication
Applied Physics A: Materials Science & Processing, 2017, Vol 123, Issue 10, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-017-1278-6