Abstract
Aegagropilae, also known as Posidonia balls, are natural spherical aggregates formed by entangled fibers resulting from the decomposition of Posidonia Oceanica. A fully natural dissipative and soft finite depth sonic crystal constituted of Aegagropilae fiber network arranged over a principal cubic system is analyzed both experimentally and numerically. In addition to band gap translation and absorption properties, the acoustic behavior of this fully natural sonic crystal is analyzed via the Argand diagram of both the reflection and transmission coefficients. Beside this analysis, the Aegagropilae fiber network is acoustically characterized. The results are analyzed and the fibrous network microstructure is assessed.
BibTeX citation
@inproceedings{GrobyFUS2020,
author = {J.-P. Groby and L. Barguet and V. Romero-García and N. Jiménez and L.M. García-Raffi and V.J. Sánchez-Morcillo},
booktitle = {9th Forum Acusticum, FA 2020. Lyon, France. 7-11 December},
doi = {https://dx.doi.org/},
editor = {Proceedings of the FA2020 Conference},
month = {12},
organization = {European Acoustical Association, French Acoustical Society (SFA)},
publisher = {HAL},
series = {Oral},
title = {Natural sonic crystal constituted of Aegagropilae fiber network},
url = {https://fa2020.universite-lyon.fr/fa2020},
year = {2020}
}