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Proceedings 2018, 2(8), 430; https://doi.org/10.3390/ICEM18-05289

Digital Image Correlation Measurements of Mode I Fatigue Delamination in Laminated Composites

1
Department of Materials Engineering, KU Leuven, 3001 Leuven, Belgium
2
SIM M3 program, 9052 Zwijnaarde, Belgium
3
Department Mechanics of Materials and Constructions, Vrije Universiteit Brussel, 1050 Brussels, Belgium
4
Siemens PLM Software, 3001 Leuven, Belgium
Presented at the 18th International Conference on Experimental Mechanics (ICEM18), Brussels, Belgium, 1–5 July 2018.
*
Author to whom correspondence should be addressed.
Published: 4 June 2018
PDF [993 KB, uploaded 15 June 2018]

Abstract

A Digital Image Correlation (DIC) based method is proposed to characterize Mode I fatigue delamination onset and propagation in laminated composites. With the help of DIC, the displacement field around a delamination crack is obtained and further processed to determine the position of the crack tip. With this method the delamination length can be measured automatically in each cycle with a precision on the order of few hundreds of micrometers. The fatigue delamination onset life is then determined by detecting the increase of the delamination length, and the fatigue delamination propagation rate is calculated. The proposed method produces more conservative fatigue life measurements in comparison with the compliance increase method in ASTM D6115.
Keywords: digital image correlation; fatigue delamination; composites digital image correlation; fatigue delamination; composites
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zhu, M.; Gorbatikh, L.; Fonteyn, S.; Pyl, L.; Hemelrijck, D.V.; Carrella-Payan, D.; Lomov, S.V. Digital Image Correlation Measurements of Mode I Fatigue Delamination in Laminated Composites. Proceedings 2018, 2, 430.

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