AN EXTENED PHANTOM NODE METHOD FOR CRACK INTERACTIONS IN COMPOSITES

AN EXTENED PHANTOM NODE METHOD FOR CRACK INTERACTIONS IN COMPOSITES

Chen, B.; Pinho, S. T.; Baiz, P. M.; Tay, T. E.

Full Article:

Failure of fibre-reinforced composite materials is usually preceded by the devel-opment of a network of cracks running through plies (matrix cracks) and between plies (de-lamination). Matrix cracks and delamination often interact with each other to form complex crack paths. A novel numerical method is developed to model all plies of the laminate by one element. Matrix cracks, delamination and matrix crack tips at the interface can all be explic-itly represented within such an element to achieve high accuracy modelling of the mechanism of interaction. A 2D element formulated based on this method has demonstrated good per-formance on the delamination/matrix crack interaction problem in a cross-ply composite laminate.

Failure of fibre-reinforced composite materials is usually preceded by the devel-opment of a network of cracks running through plies (matrix cracks) and between plies (de-lamination). Matrix cracks and delamination often interact with each other to form complex crack paths. A novel numerical method is developed to model all plies of the laminate by one element. Matrix cracks, delamination and matrix crack tips at the interface can all be explic-itly represented within such an element to achieve high accuracy modelling of the mechanism of interaction. A 2D element formulated based on this method has demonstrated good per-formance on the delamination/matrix crack interaction problem in a cross-ply composite laminate.

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DOI: 10.5151/meceng-wccm2012-19582

Referências bibliográficas

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Como citar:

Chen, B.; Pinho, S. T.; Baiz, P. M.; Tay, T. E.; "AN EXTENED PHANTOM NODE METHOD FOR CRACK INTERACTIONS IN COMPOSITES", p-3781-3792. In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 23580828, DOI 10.5151/meceng-wccm2012-19582