Investigation of Compressive Damage Mechanisms in 3D Braided Composites by the Acoustic Emission Events Energy and Amplitude

Abstract:

The deformation behavior and damage mechanism of 3-D carbon/epoxy braided composites with different braiding angles under the monotonic compressive loading are investigated by the acoustic emission (AE) technique. The damage process is divided into several different regions based on the change of the accumulative AE event counts. Correlations between the damage mechanisms and the AE results are established in terms of the events energy and amplitude. These correlations can be used to monitor the fracture growth process in the braided composites. Experimental results reveal that the AE technique is an effective tool for identifying damage mechanisms.

• Periodical: Applied Mechanics and Materials (Volume 274)
• Pages: 393-397
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.274.393
• Online since: January 2013
• Authors: Shi Yan, Shi Dong Pan, Dong Hua Li, Ji Cai Feng
• Keywords: Acoustic Emission (AE), Composite, Deformation, Fracture

References

[1] M.R. Bhat, M. Majeed, C.R.L. Murthy, Characterization of fatigue damage in unidirectional GFRP composites through acoustic emission signal analysis, NDT&E International. 27(1994) 27-32.

DOI: 10.1016/0963-8695(94)90007-8

[2] L. Carlsson, B. Norrbom, Acoustic emission from graphite/epoxy composite laminates with special reference to delamination, J Mater Sci. 18(1983) 2503-2509.

DOI: 10.1007/bf00541857

[3] W. Haselbach, B. Lauke, Acoustic emission of debonding between fibre and matrix to evaluate local adhesion, Compos Sci Technol. 63(2003) 2155-2162.

DOI: 10.1016/s0266-3538(03)00193-3

[4] I. Ndlaye, A. Maslouhi, J. Denault, Characterization of interfacial properties of composite materials by acoustic emission, Ploym Compos. 21(2004) 595-604.

DOI: 10.1002/pc.10215

[5] T.M. Ely, E.V.K. Hill, Longitudinal splitting and fiber breakage characterization in graphite epoxy using acoustic emission data, Mater Eval. 53(1995) 369-376.

[6] S. Barre, M.L. Benzeggagh, On the use of acoustic emission to investigate damage mechanisms in glass-fiber-reinforced polypropylene, Compos Sci Technol. 52(1994) 369-376.

DOI: 10.1016/0266-3538(94)90171-6

[7] X.M. Zhuang, X. Yan, Investigation of damage mechanisms in self-reinforced polyethylene composites by acoustic emission, Compos Sci Technol. 66(2006) 444-449.

DOI: 10.1016/j.compscitech.2005.07.013

[8] P.J. De groot, P. Wijnen, R.B.F. Janssen, Real-time frequency determination of acoustic emission for different fracture mechanisms in carbon/epoxy composites, Compos Sci Technol. 55(1995) 405-412.

DOI: 10.1016/0266-3538(95)00121-2

[9] C.R. Ranures-Jimenez, N. Papadakis, N. Reynolds, T.H. Gan, P. Purnell, M. Pharaoh, Identification of failure modes in glass/polypropylene composites by means of the primary frequency content of the acoustic emission event, Compos Sci Technol. 64(2004).

DOI: 10.1016/j.compscitech.2004.01.008

[10] T.H. Loutas, V. Kostopoulos, C. Ramirez-Jimenez, M. Pharaoh, Damage evolution in center-holed glass/polyester composites under quasi-static loading using time/frequency analysis of acoustic emission monitored waveforms, Compos Sci Technol. 66(2006).

DOI: 10.1016/j.compscitech.2005.09.011