Print Email Facebook Twitter On the fracture behaviour of CFRP bonded joints under mode I loading Title On the fracture behaviour of CFRP bonded joints under mode I loading: Effect of supporting carrier and interface contamination Author Heide-Jørgensen, Simon (Aarhus University) Teixeira De Freitas, S. (TU Delft Structural Integrity & Composites) Budzik, Michal K. (Aarhus University) Date 2018-05-26 Abstract This paper addresses the fracture behaviour of bonded composite plates featuring a kissing bond along the crack growth path. Double cantilever beam (DCB) experiments are carried out under a displacement controlled loading condition to acquire the load response. The experimental data are collected and analysed analytically for specimens with and without kissing bond. The following aspects are observed and discussed: effect of the adhesive carrier film, non-smooth crack growth and rising R curve. An analytical model taking into account the aforementioned effects is proposed. The kissing bond leads to unstable crack growth resulting in a loss of the load carrying capacity. The presence of the knit carrier in the adhesive film results in the crack growth process characteristic for the stick-slip phenomena and a significant increase of the resistance to fracture of the bondline by triggering a bridging phenomenon. The model shows a very good agreement with the experimental data. A sound understanding of the fracture process is gained enabling analysis and prediction of the effects of kissing bonds and supporting carrier. Subject BondingBridgingCompositesDCBKissing bondsLattice materialRising R curve To reference this document use: http://resolver.tudelft.nl/uuid:98d8a467-bb67-436c-86fb-d2aa3f639fd9 DOI https://doi.org/10.1016/j.compscitech.2018.03.024 Embargo date 2020-03-22 ISSN 0266-3538 Source Composites Science and Technology, 160, 97-110 Part of collection Institutional Repository Document type journal article Rights © 2018 Simon Heide-Jørgensen, S. Teixeira De Freitas, Michal K. Budzik Files PDF CST_2018_TeixeiradeFreita ... ublic_.pdf 5.81 MB Close viewer /islandora/object/uuid:98d8a467-bb67-436c-86fb-d2aa3f639fd9/datastream/OBJ/view