Title

Measurement Of Load Transfer Within Alumina Nanoparticle Epoxy Composites Using Piezospectroscopy

Abstract

Alumina nanoparticles embedded in an epoxy matrix are investigated to elucidate the relationship between the hydrostatic stress on the particles and the sensitivity of the stress sensing properties using piezospectroscopy. While the alumina nanoparticles are small in relation to the surrounding matrix, the concentration of particles and inherent load transfer to these particles ultimately affects the mechanical properties of the composite. Experimental results from stress sensitive photo-stimulated luminescence spectroscopy (PSLS) illustrate the effect of particle volume fraction on the load transfer characteristics of the composite through the piezospectroscopic coefficients. These experimental results are compared to an analytical solution using the governing Eshelby theory. Validation of the Eshelby theory at low volume fractions indicates that a modified Eshelby model could be used for higher volume fractions.

Publication Date

7-23-2012

Publication Title

International SAMPE Technical Conference

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84863889197 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84863889197

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