Abbreviated Journal Title
AIP Adv.
Keywords
FLUORESCENCE; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
Abstract
The piezospectroscopic effect, relating a material's stress state and spectral signature, has recently demonstrated tailorable sensitivity when the photo-luminescent alpha alumina is distributed in nanoparticulate form within a matrix. Here, the stress-sensing behavior of an alumina-epoxy nanoparticle coating, applied to a composite substrate in an open hole tension configuration, is validated with the biaxial strain field concurrently determined through digital image correlation. The coating achieved early detection of composite failure initiation at 77% failure load, and subsequently tracked stress distribution in the immediate vicinity of the crack as it progressed, demonstrating non-invasive stress and damage detection with multi-scale spatial resolution.
Journal Title
Aip Advances
Volume
5
Issue/Number
3
Publication Date
1-1-2015
Document Type
Article
DOI Link
Language
English
First Page
5
WOS Identifier
ISSN
2158-3226
Recommended Citation
Freihofer, Gregory; Dustin, Joshua; Tat, Hong; Schülzgen, Axel; and Raghavan, Seetha, "Stress and structural damage sensing piezospectroscopic coatings validated with digital image correlation" (2015). Faculty Bibliography 2010s. 6537.
https://stars.library.ucf.edu/facultybib2010/6537
Comments
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