Computational homogenization of discrete fracture in fibre-epoxy systems

M.V. Cid Alfaro, A.S.J. Suiker, C.V. Verhoosel, R. Borst, de

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    Abstract

    In the present paper the effective mesoscale failure response of a ¿bre-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 ¿bre-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 size of the microscopic ¿bre-epoxy sample on the mesoscale failure response is examined, as well as the effect of local imperfections at ¿bre-epoxy interfaces.
    Original languageEnglish
    Title of host publicationProceedings of the 12th International ESAFORM Conference on Material Forming (ESAFORM 2009), April 2009, Enschede, Netherlands
    Pagesx-x
    Publication statusPublished - 2009

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