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Investigation on the Influence of the Surface Resin Rich Layer on the Thermoelastic Signal from Different Composite Laminate Lay-Ups

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Abstract:

This work presents a set of experimental results based on the measured thermoelastic signal from GRP composite coupons adopting different lay-ups. A comparison is made with the thermoelastic signal predicted by two different analytical models: one based on the classical law of the thermoelastic effect for orthotropic materials, and the other based on a novel theory accounting for the presence of a resin layer on the external surface of the composite structure. The composite coupons were designed such to determine a significant difference in the predictions made by the two theoretical models. Experimental results have shown a far better match with the predictions based on the novel theory accounting for the presence of a surface resin rich layer.

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Periodical:

Applied Mechanics and Materials (Volumes 3-4)

Pages:

167-172

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.3-4.167

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Online since:

August 2006

Authors:

G. Pitarresi, A. Conti, U. Galietti

Keywords:

Deltatherm, Glass Reinforced Composite Laminates, Strain Witness, Thermoelastic Stress Analysis

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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References

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