THE EFFECT OF DRILLING PARAMETERS ON STRENGTH OF GLASS FIBRE-EPOXY LAMINATES BY PRODUCED HAND LAY-UP

Year 2017, Volume: 12 Issue: 4, 246 - 254, 22.10.2017

Erol Kılıçkap Burak Yenigün Yahya Hışman Çelik

Abstract

In
this study, the effects of delamination factor on strength of glass fiber reinforced
plastic (GFRP) composite with +45/-45 orientation angle fabrics were
investigated. GFRP composite specimens, which contain 36% fiber volume, were
produced by hand lay-up. The all specimens were prepared according to ASTM
D5766-2002 standards. The experiments were conducted the different drilling
parameters such as cutting speeds and feed rates using tungsten carbide (WC)
and Brad Spur drill tools. Delamination factors of drilled specimens were
determined by optical microscope. The tensile strength values of the drilled
GFRP composite specimens were determined by universal tensile testing machine.
As results, it was determined that the increasing cutting speed and feed rate
increased the delamination factor. The strength of GFRP composites decreased
with increasing delamination factor.

Keywords

Delamination, Drilling, GFRP, Tensile Strength, Glass Fibre-Epoxy Laminates

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