Journal
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
Volume 29, Issue 2, Pages 119-131Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.euromechsol.2009.09.006
Keywords
Adhesive layers; Cohesive zone model; Discrete fracture; Fibre debonding; Matrix Cracking
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Funding
- Stichting Technische Wetenschappen (STW)
- Deutsche Forschungsgemeinsch aft (DFG), Germany
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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. (C) 2009 Elsevier Masson SAS. All rights reserved.
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