THE MODE II INTERLAMINAR FRACTURE TESTING OF GLASS FIBRE REINFORCED THERMOSET COMPOSITES
Keywords:
lnterlaminar fracture, mode 11, E-glass fibre/thermoset based, end notched-flexure (ENF), critical strain energyAbstract
This paper presents the result of setting up the end notched flexure (ENF) testing to determine the Mode-ll interlaminar fracture toughness on various forms of E-glass fibre/thermoset based
composites. The materials tested are unidirectional, woven roving and chopped strands mat with polyester and epoxy resins and were manufactured by hand lay up technique. The preparation
process, testing procedure and data reduction scheme of the ENF specimen are described in
details. To verify the result of this work, the Mode-ll critical strain energy release rate, Guo for
the tested materials is compared to those found in other publications. This study successfully
demonstrates the simplicity and effectiveness of the ENF specimen in evaluating the Mode-ll
fracture toughness ofE-glass fibre/thermoset based composites.
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