Drilling is one of the most commonly used process for hole making. Drilling of polymer matrix composites (PMCs) causes substantial damage around the drilled hole. Drilling-induced damage not only decreases the strength of the composite laminate with hole, but it also deteriorates the long-term performance of the PMC laminates under different loading conditions. In the present research investigation, the flexural behaviour of the glass fibre-reinforced plastic laminates with drilled hole was experimentally investigated under three-point loading conditions. The results of the experimental investigation were compared with those of the finite element model and were found to be in close agreement.
TagarielliV. L.FleckN. A.DeshpandeV. S.Collapse of clamped and simply supported composite sandwich beams in three-point bending. Composites Part B, 2004, 35, 523–534.
3.
SinghI.BhatnagarN.Drilling of uni-directional glass fiber reinforced plastic (UD-GFRP) composite. Int. J. Adv. Mf. Technol., 2006, 27, 870–876.
4.
SinghI.NayakD.SaxenaR.BhatnagarN.Drilling induced damage in FRP composite laminates. J. Inst. Eng., 2004, 85, 37–40.
5.
KishoreR. A.TiwariR.SinghI.Investigation of drilling in [(0/90)/0]s glass fiber reinforced plastics using Taguchi method. Adv. Prod. Eng. Manag., 2009, 4(1), 37–46.
6.
KishoreR. A.TiwariR.RakeshP. K.SinghI.BhatnagarN.Investigation of drilling in fiber reinforced plastics using response surface methodology. Proc. IMechE, Part B: J Engineering Manufacture, 2011, 225(3), 453–457.
7.
MathewJ.RamakrishnanN.NaikN. K.Investigations into the effect of geometry of trepanning tool on thrust and torque during drilling of GFRP composites. J. Mater. Process. Technol., 1999, 91, 1–11.
8.
PalanikumarK.RubioJ. C.AbraoA.EstevesA.DavimJ. P.Statistical analysis of delamination in drilling glass fiber-reinforced plastics (GFRP). J. Reinf. Plast. Compos., 2008, 27(15), 1615–1623.
9.
MohanN. S.RamachandraA.KulkarniS. M.Machining of fiber-reinforced thermoplastics: influence of feed and drill size on thrust force and torque during drilling. J. Reinf. Plast. Compos., 2005, 24(12), 1247–1257.
10.
HochengH.TsaoC. C.Comprehensive analysis of delamination in drilling of composite materials with various drill bits. J. Mater. Process. Technol., 2003, 140, 135–139.
11.
KilickapE.Investigation into the effect of drilling parameters on delamination in drilling GFRP. J. Reinf. Plast. Compos., 2010, 29(23), 3498–3503.
12.
RamkumarJ.AravindanS.MalhotraS. K.KrishnamurthyR.An enhancement of the machining performance of GFRP by oscillatory assisted drilling. Int. J. Adv. Mf. Technol., 2004, 23, 240–244.
13.
WangX.WangL. J.TaoJ. P.Investigation on thrust in vibration drilling of fiber reinforced plastics. J. Mater. Process. Technol., 2004, 148, 239–244.
14.
UpadhyayP. C.LyonsJ. S.On the evaluation of critical thrust for delamination free drilling of composite laminates. J. Reinf. Plast. Compos., 1999, 18, 1287–1303.
15.
LathaB.SenthilkumarV. S.Fuzzy rule based modeling of drilling parameters for delamination in drilling GFRP composites. J. Reinf. Plast. Compos., 2009, 28(8), 951–964.
16.
TagliaferriV.CaprinoG.DiterlizziA.Effect of drilling parameters on the finish and mechanical properties of GFRP composites. Int. J. Mach. Tools Mf., 1990, 30(1), 77–84.
17.
CapelloE.TagliaferriV.Drilling damage of GFRP and residual mechanical behavior - part I: drilling damage generation. J. Compos. Technol. Res., 2001, 23(2), 122–130.
18.
CapelloE.TagliaferriV.Drilling damage of GFRP and residual mechanical behavior - part II: static and cyclic bearing loads. J. Compos. Technol. Res., 2001, 23(2), 131–137.
19.
KishoreR. A.TiwariR.DvivediA.SinghI.Taguchi analysis of the residual tensile strength after drilling in glass fiber reinforced epoxy composites. Mater. Des., 2009, 30, 2186–2190.
20.
MariattiM.NasirM.IsmailH.BacklundJ.Effect of hole drilling techniques on tensile properties of continuous fiber impregnated thermoplastic plain weave composites. J. Reinf. Plast. Compos., 2004, 23(11), 1173–1185.
21.
PerssonE.ErikssonI.ZackrissonL.Effects of the hole machining defects on strength and fatigue life of composite laminates. Composites Part A, 1997, 28, 141–151.
22.
RakeshP. K.SinghI.KumarD.Failure prediction in glass fiber reinforced plastic laminates with drilled hole under uniaxial loading. Mater. Des., 2010, 31, 3002–3007.
23.
CarbajalN.MujikaF.Determination of compressive strength of unidirectional composites by three-point bending tests. Polym. Test., 2009, 28, 150–156.
24.
ShihG. C.EbertL. J.Flexural failure mechanisms and global stress plane for unidirectional composites subjected to four point bending tests. Composites, 1986, 17(4), 309–320.
25.
HashinZ.Failure criteria for unidirectional fiber composites. J. Appl. Mech., 1980, 47, 329–334.
26.
KnightN. F.User defined material model for progressive failure analysis. Report no. NASA/CR-214526, General Dynamics – Advanced Information Systems, Chantilly, Virginia, 2006.
