Journal
COMPOSITES PART B-ENGINEERING
Volume 107, Issue -, Pages 182-191Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2016.09.081
Keywords
Polymer-matrix composites (PMCs); Delamination; Optical properties/techniques; Non-destructive testing; Optical transmission scanning
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Non-destructive evaluation (NDE) techniques that can measure both surface and subsurface defects are of critical importance in evaluating the integrity of GFRP composites. In the present work, optical transmission scanning (OTS) technique was proposed for acquiring high-resolution, rapid, and non contact OT (optical transmittance)-scans of pristine and impacted GFRP samples. Advanced data analysis was developed and implemented to identify the number of delaminations at every scan position. The results agreed very well with the actual number and extent of delaminations observed directly from a cross-section of the specimen. Overall, the presented technique lays the groundwork for cost-effective, non-contact, rapid, and quantitative NDE of GFRP composite structures. (C) 2016 Elsevier Ltd. All rights reserved.
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