Numerical homogenization of cracking processes in thin fibre-epoxy layers

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

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Abstract

Discrete microscale fracture processes in thin fibre-epoxy layers are connected to a mesoscale traction-separation law through a numerical homogenization framework. The microscale fracture processes are studied with the finite element method, where cracking within the epoxy and debonding between fibres and epoxy is simulated by placing interface elements furnished with a mixed-mode interface damage model in between the continuum elements modelling the fibres and epoxy. It is demonstrated how the effective traction-separation response and the corresponding microscale fracture patterns under mesoscale tensile conditions depend on the sample size, the fibre volume fraction and the presence of imperfections.
Original languageEnglish
Pages (from-to)119-131
JournalEuropean Journal of Mechanics. A, Solids
Volume29
Issue number2
DOIs
Publication statusPublished - 2010

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