Porosity Estimation of Composites Using Acoustic Attenuation
Yang Shen, Zhiwen Guo, Yong You, Guocai Zhang
Available Online September 2016.
- https://doi.org/10.2991/amitp-16.2016.63How to use a DOI?
- composite, ultrasonic nondestructive testing, porosity, acoustic attenuation.
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 PB - Atlantis Press SP - 320 EP - 323 SN - 2352-538X UR - https://doi.org/10.2991/amitp-16.2016.63 DO - https://doi.org/10.2991/amitp-16.2016.63 ID - Shen2016/09 ER -