A hybrid embedded cohesive element method for predicting matrix cracking in composites

Joosten, Matthew. W, Dingle, Matthew, Mouritz, Adrian, Khatibi, Akbar A., Agius, Steven and Wang, Chun H. 2016, A hybrid embedded cohesive element method for predicting matrix cracking in composites, Composite structures, vol. 136, pp. 554-565, doi: 10.1016/j.compstruct.2015.10.030.

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Title A hybrid embedded cohesive element method for predicting matrix cracking in composites
Author(s) Joosten, Matthew. WORCID iD for Joosten, Matthew. W orcid.org/0000-0002-4602-3246
Dingle, Matthew
Mouritz, Adrian
Khatibi, Akbar A.
Agius, Steven
Wang, Chun H.
Journal name Composite structures
Volume number 136
Start page 554
End page 565
Total pages 12
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-02
ISSN 0263-8223
Keyword(s) Science & Technology
Materials Science, Composites
Materials Science
Composite materials
Cohesive elements
Fibre bridging
Embedded element method
Summary The complex architecture of many fibre-reinforced composites makes the generation of finite element meshes a labour-intensive process. The embedded element method, which allows the matrix and fibre reinforcement to be meshed separately, offers a computationally efficient approach to reduce the time and cost of meshing. In this paper we present a new approach of introducing cohesive elements into the matrix domain to enable the prediction of matrix cracking using the embedded element method. To validate this approach, experiments were carried out using a modified Double Cantilever Beam with ply drops, with the results being compared with model predictions. Crack deflection was observed at the ply drop region, due to the differences in stiffness, strength and toughness at the bi-material interface. The new modelling technique yields accurate predictions of the failure process in composites, including fracture loads and crack deflection path.
Language eng
DOI 10.1016/j.compstruct.2015.10.030
Field of Research 091202 Composite and Hybrid Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084176

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