Acoustic Emission Behaviors of Carbon-Cloth/Epoxy Composites in Compression Test

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Abstract:

In this paper, we use acoustic emission (AE) system to collect the AE signals and analyze the damage evolution during the monotonic compression test. Based on the experimental correlation diagram of the load and characters of the acoustic emission, the reference load of failure was found. The experimental results also revealed the characters of the source of the acoustic emission signals after the wavelet packet decomposition and frequency spectrum analysis. The frequency range of the matrix cracking is on the range of 125~187.5 kHz, while the frequency range of layer debonding is wide, it is not just on the low-frequency range but on the high-frequency range. The frequency of fiber breakage is on the high frequency range, nearly on the range of 375~437.5 kHz.

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Key Engineering Materials (Volumes 480-481)

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421-426

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June 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] Sinke J.: Journal of Materials Science, Vol. 41 (2006), p.6777.

Google Scholar

[2] Caprino G, Teti R.: Journal of Composite Materials, Vol. 28 (1994), p.1237.

Google Scholar

[3] Schechinger B, Vogel T.: Construction and Building Materials, Vol. 21 (2006), p.483.

Google Scholar

[4] Shiotani T, Li.Z., Yuyama S.: Journal of Acoustic Emission, Vol. 19 (2001), p.118.

Google Scholar

[5] Gang Q.: International NDT&E, Vol. 33(2000), p.133.

Google Scholar

[6] Awerbuch J., Ghaffari S.: Journal of Reinforced Plastics and Composites, Vol. 7 (1988), p.245.

Google Scholar

[7] Olivier S., Hiroshi T.: Carbon Fiber-reinforced Plastic Materials, Vol. 25 (2000), p.533.

Google Scholar

[8] S.R. Ravishankar, C.R.L. Murthy.: International NDT&E, Vol. 33 (2000), p.429.

Google Scholar

[9] Glaster SD, Shoureshi R, Pescovitz D.: Smart Structure and System, Vol. 11 (2005), p.103.

Google Scholar

[10] Christian. UG, Masayasu O.: Acoustic emission testing, (Springer Publications, Berlin Heidelberg 2008).

Google Scholar

[11] Hamstad MA, O'Gallagher A, Gray J.: Journal of Acoustic Emission, Vol. 17 (1999), p.97.

Google Scholar