Ply-scale finite element (FE) models are widely used to predict the performance of a composite structure based on material properties of individual plies. When simulating damage, these models neglect microscopic fracture processes which may have a significant effect on how a crack progresses within and between plies of a multidirectional laminate. To overcome this resolution limitation a multi-scale modelling technique is employed to simulate the effect micro-scale damage events have on the macro-scale response of a structure. The current paper discusses the development and validation of a hybrid mass-spring system and finite element modelling technique for multi-scale analysis. The model developed here is limited to elastic deformations; however, it is the first key step towards an efficient multi-scale damage model well suited to simulation of fracture in fibre reinforced composite materials. Various load cases have been simulated using the model developed here which show excellent accuracy compared to analytical and FE results. Future work is discussed, including extension of the model to incorporate damage modelling.
History
Pagination
1-10
Location
Bristol, Eng.
Start date
2015-09-07
End date
2015-09-09
Language
eng
Publication classification
E Conference publication, E2.1 Full written paper - non-refereed / Abstract reviewed
Copyright notice
2015, ECCOMAS
Editor/Contributor(s)
Hallet SR, Remmers JJC
Title of proceedings
COMPOSITES 2015: Book of Abstracts for the 5th ECCOMAS Thematic Conference on the Mechanical Response of Composites