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Proceedings Paper

Mechanical degradation of cross-ply laminates monitored by acoustic emission
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Paper Abstract

This study deals with the investigation of cross ply composites failure by acoustic emission (AE). Broadband AE sensors monitor the different sources of failure in coupons of this material during a tensile loading-unloading test. The cumulative number of AE activity, and other qualitative indices based on the shape of the waves, were well correlated to the sustained load. AE parameters indicate the shift of failure mechanisms within the composite as the load increases. The ultimate goal is a methodology based on NDT techniques for real time characterization of the degradation and identification of the fracture stage of advanced composite materials.

Paper Details

Date Published: 20 April 2011
PDF: 6 pages
Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79833D (20 April 2011); doi: 10.1117/12.880469
Show Author Affiliations
A. Paipetis, Univ. of Ioannina (Greece)
M. Xyrafa, Univ. of Ioannina (Greece)
N. M. Barkoula, Univ. of Ioannina (Greece)
T. E. Matikas, Univ. of Ioannina (Greece)
D. G. Aggelis, Univ. of Ioannina (Greece)


Published in SPIE Proceedings Vol. 7983:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
H. Felix Wu, Editor(s)

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