Porosity Estimation of Composites Using Acoustic Attenuation

DOI

10.2991/amitp-16.2016.63How to use a DOI?

Keywords

composite, ultrasonic nondestructive testing, porosity, acoustic attenuation.

Abstract

Ultrasonic techniques for measuring void content were discussed and the composites used for the whole fuselage composite aircraft AG300 were chosen as experimental specimens, including 10 unidirectional carbon fiber laminates and 10 textile glass fiber sheets. The ultrasonic RF signals were processed using Hilbert transform and spectral-filter and then used to calculate the acoustic attenuation. The relationship between attenuation coefficient and porosity was calibrated by sampling experiment based on metalloscope. The calibrated formula was then used to estimate the porosity of the rest specimens. The results indicate that the porosity values estimated by the calibrated formula are in good agreement with the values determined by metalloscope.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yang Shen
AU  - Zhiwen Guo
AU  - Yong You
AU  - Guocai Zhang
PY  - 2016/09
DA  - 2016/09
TI  - Porosity Estimation of Composites Using Acoustic Attenuation
BT  - Proceedings of the 2016 4th International Conference on Advanced Materials and Information Technology Processing (AMITP 2016)
PB  - Atlantis Press
SP  - 320
EP  - 323
SN  - 2352-538X
UR  - https://doi.org/10.2991/amitp-16.2016.63
DO  - 10.2991/amitp-16.2016.63
ID  - Shen2016/09
ER  -