Abstract
It has been shown that as damage grows within a composite material, there is a local temperature increase that can be measured with an infrared (IR) detector. The possibility of controlling the rate of damage evolution during a test using infrared thermography (IRT) is investigated. Unlike the point or local monitoring achieved by strain gauges, IRT is a full-field technique which can be used to monitor the whole test specimen. To control damage evolution rate, the IR response (i.e. temperature change) associated with material damage must be defined and measured, before a control methodology can be developed. The results of a series of tests conducted to establish the relationship between the recorded temperature change and damage condition in composite materials is described. Two types of glass reinforced epoxy specimens are studied with layup (0, 90)3S and (±45)3S under fatigue loading.
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© 2017 The Society for Experimental Mechanics, Inc.
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Thatcher, J.E., Crump, D.A., Bailey, P.B.S., Dulieu-Barton, J.M. (2017). Characterising the Infrared Signature of Damaged Composites for Test Control. In: Ralph, W., Singh, R., Tandon, G., Thakre, P., Zavattieri, P., Zhu, Y. (eds) Mechanics of Composite and Multi-functional Materials, Volume 7 . Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-41766-0_33
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DOI: https://doi.org/10.1007/978-3-319-41766-0_33
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