Mechanical degradation of cross-ply laminates monitored by acoustic emission

A. Paipetis; M. Xyrafa; N. M. Barkoula; T. E. Matikas; D. G. Aggelis

doi:10.1117/12.880469

19 April 2011 Mechanical degradation of cross-ply laminates monitored by acoustic emission

A. Paipetis, M. Xyrafa, N. M. Barkoula, T. E. Matikas, D. G. Aggelis

Proceedings Volume 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011; 79833D (2011) https://doi.org/10.1117/12.880469
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

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.

Citation Download Citation

A. Paipetis, M. Xyrafa, N. M. Barkoula, T. E. Matikas, and D. G. Aggelis "Mechanical degradation of cross-ply laminates monitored by acoustic emission", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79833D (19 April 2011); https://doi.org/10.1117/12.880469

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