Title: Online monitoring of surface cracks and delaminations in carbon fiber/epoxy composites using silver nanoparticle based ink
Authors: Augustin, Till
Grunert, Danny
Langner, Hauke H. 
Haverkamp, Vico 
Fiedler, Bodo
Language: eng
Issue Date: 2017
Publisher: Taylor & Francis Group
Document Type: Working Paper
Publisher Place: London
Abstract: 
In this study, we present an online-monitoring approach using silver nanoparticle based ink on carbon fiber reinforced plastics (CFRP). After production of CFRP plates in a prepreg autoclave process and printing conductive paths on the material, we investigate the conductive paths of printed silver nanoparticle-based ink on CFRP by light microscopy. Mechanical tests with simultaneous electrical resistance measurements demonstrate the possibility to detect particular modes of failure with samples specifically designed to promote inter-fiber failures and delaminations under bending. Delaminations can be detected and localized inside the material by electrical through-thickness measurements and resistance measurements of the conductive paths allow for surface crack detection.
URL: http://hdl.handle.net/11420/1416
Publisher DOI: 10.15480/882.1413
Appears in Collections:2017

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