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Electrochemical Impedance Spectroscopy Detection of Damage in Out of Plane Fatigued Fiber Reinforced Composite Materials

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Abstract

Current applications require an understanding of the relationships that exist between the functional characteristics of composite material systems and the long-term behavior of those materials under mechanical loading. In the present work, Electrochemical Impedance Spectroscopy was used to characterize damage initiation and progression in woven glass/epoxy composites that were fatigued loaded out of plane. A systematic approach was taken to establish a proof of concept that electrochemical impedance at different frequencies of excitation in woven glass/epoxy composites is related to the development of damage in that material under cyclic end-loaded bending. Impedance spectroscopy measurements were found to show large, consistent, and clear distinctions as damage developed, and also proved capable of detecting non-visual localized damage in thin specimens.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA

    Paul Fazzino & Kenneth Reifsnider

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  1. Paul Fazzino
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  2. Kenneth Reifsnider
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Correspondence to Paul Fazzino.

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Fazzino, P., Reifsnider, K. Electrochemical Impedance Spectroscopy Detection of Damage in Out of Plane Fatigued Fiber Reinforced Composite Materials. Appl Compos Mater 15, 127–138 (2008). https://doi.org/10.1007/s10443-008-9062-6

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  • DOI: https://doi.org/10.1007/s10443-008-9062-6

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