Computational homogenization of discrete fracture in fibre-epoxy systems |
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| Authors: | M V Cid Alfaro A S J Suiker C V Verhoosel R de Borst |
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| Affiliation: | 1.Faculty of Aerospace Engineering,Delft University of Technology,Delft,Netherlands;2.Eindhoven University of Technology,Eindhoven,Netherlands |
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| Abstract: | In the present paper the effective mesoscale failure response of a fibre-epoxy sample is computed from its complex microscale fracture behaviour. The mesoscale failure response is represented by a traction-separation curve derived from numerically homogenizing the fracture response of a periodic fibre-epoxy microstructure loaded under uniaxial tension. The traction-separation curve can be applied in material points of interface elements that are used for simulating mode I mesoscopic fracture in macroscopic laminate failure problems. The effect of the size of the microscopic fibre-epoxy sample on the mesoscale failure response is examined, as well as the effect of local imperfections at fibre- epoxy interfaces. |
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