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The main purpose of this study is the delamination characterization in Modes I and II. Density and fibre quantity were identified in order to define the carbon epoxy composite material. The initial delamination, using a bag insert, was done during the cure processing. After that, the water jet cutting applied to maintain the dimensions following ASTM standards and structural integrity, provoking no defects in the boundaries. DCB (Double-cantilever Beam) and ENF (End-notched Flexure) tests, according ASTM D5528 and ASTM D790-10, run in MTS 250 kN Universal Testing Machine. Scanning Electronic Microscopy demonstrated the damages involved during delamination process. Besides proved that the manual processing provoked many air bubbles, which could increase damage. Modes I and II critical fracture energies (GIC and GIIC) are characterized, following the standards, these values are compatible with the literature, therefore the delamination initial energy are identified.

CARACTERIZAÇÃO EXPERIMENTAL DO PROCESSO DE DELAMINAÇÃO EM MATERIAL COMPÓSITO DE FIBRA DE CARBONO E RESINA EPÓXI