Comparison of Different Methods for Determination of Delamination Initiation Point in the DCB Test on Coupled CFRP Composite Laminates
Jakub Rzeczkowski, Sylwester Samborskidownload PDF
Abstract. This article presents an experimental determination of the mode I critical strain energy release rate (c-SERR) for different initiation definitions. The multidirectional (MD) and mechanically coupled laminates were subjected to the double cantilever beam (DCB) test. The NL, Pmax and 5% criteria were taken into account in calculation of the fracture toughness (GIC). An acoustic emission (AE) technique was used as additional initiation criterion. On the basis of the performed test it was found that the critical strain energy release rate depends on the adopted definition as well as on the specimen interface and mechanical couplings.
Damage, Delamination, Double Cantilever Beam, Acoustic Emission, Mechanical Coupling
Published online 5/25/2019, 7 pages
Copyright © 2019 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Jakub Rzeczkowski, Sylwester Samborski, Comparison of Different Methods for Determination of Delamination Initiation Point in the DCB Test on Coupled CFRP Composite Laminates, Materials Research Proceedings, Vol. 12, pp 52-58, 2019
The article was published as article 7 of the book Experimental Mechanics of Solids
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