The leading edges of helicopter rotor blades are susceptible to high-velocity impact from small particles of a wide variety of materials. In this study, a glass fiber-reinforced epoxy composite was subjected to single impacts from spherical particles at velocities up to Mach 1. Target samples were cut from a 15-layer composite with 3070-style woven E-glass reinforcement. Erosive simulant particles were 1.6 mm in diameter spheres of silicon nitride, 2017 aluminum, hardened 52,100 steel, 260 brass, and 102 copper. In situ images were captured of each impact event, and samples were examined post-mortem with a scanning electron microscope. The crater formation in the target material was observed to follow a two-stage process. The Young’s Modulus of the projectile has a distinct effect on the depth of damage during both stages of material removal, and the yield stress of the projectile places a limit on the extent of damage during the second stage.
HibbertWA. Helicopter trials over sand and sea. J R Aeronaut Soc1965; 69: 769–776.
2.
BinghamGJ. An analytical evaluation of airfoil sections for helicopter rotor applications. Report. National Aeronautics and Space Administration, 1975.
3.
BinghamGJNoonanKW. Two-dimensional aerodynamic characteristics of three rotorcraft airfoils at Mach numbers from 0.35 to 0.90. Report. National Aeronautics and Space Administration, 1982.
4.
ReynoldsO. XLII. On the action of a blast of sand in cutting hard material. London, Edinburgh Dublin Phil Mag J Sci1873; 46: 337–343.
5.
Rayleigh. The sand-blast. Nature1914; 93: 188.
6.
FinnieI. Erosion of surfaces by solid particles. Wear1960; 3: 87–103.
7.
BitterJGA. A study of erosion phenomena: Part I. Wear1963; 6: 5–21.
8.
BitterJGA. A study of erosion phenomena: Part II. Wear1963; 6: 169–190.
9.
NeilsonJHGilchristA. Erosion by a stream of solid particles. Wear1968; 11: 111–122.
10.
TillyGP. Erosion caused by airborne particles. Wear1969; 14: 63–79.
11.
TillyGP. Sand erosion of metals and plastics: a brief review. Wear1969; 14: 241–248.
12.
TillyGPSageW. The interaction of particle and material behaviour in erosion processes. Wear1970; 16: 447–465.
13.
WilliamsJHLauEK. Solid particle erosion of graphite-epoxy composites. Wear1974; 29: 219–230.
14.
PoolKVDharanCKHFinnieI. Erosive wear of composite materials. Wear1986; 107: 1–12.
15.
MiyazakiNHamaoT. Solid particle erosion of thermoplastic resins reinforced by short fibers. J Compos Mater1994; 28: 871–883.
16.
RoyMVishwanathanBSundararajanG. The solid particle erosion of polymer matrix composites. Wear1994; 171: 149–161.
17.
BarkoulaNMKarger-KocsisJ. Effects of fibre content and relative fibre-orientation on the solid particle erosion of GF/PP composites. Wear2002; 252: 80–87.
18.
HarshaAPTewariUSVenkatramanB. Solid particle erosion behaviour of various polyaryletherketone composites. Wear2003; 254: 693–712.
19.
TsudaKKubouchiMSakaiT, et al.General method for predicting the sand erosion rate of GFRP. Wear2006; 260: 1045–1052.
20.
KimAKimI. Solid particle erosion of CFRP composite with different laminate orientations. Wear2009; 267: 1922–1926.
21.
BagciM. Influence of fiber orientation on solid particle erosion of uni/multidirectional carbon fiber/ glass fiber reinforced epoxy composites. Proc IME J J Eng Tribol2017; 231: 594–603.
MathiasPJWuWGorettaKC, et al.Solid particle erosion of a graphite-fiber-reinforced bismaleimide polymer composite. Wear1989; 135: 161–169.
24.
BalloutYAHovisSKTaliaJE. Erosion in glass-fiber reinforced epoxy composite. Scripta Metall Mater1990; 24: 195–200.
25.
KarasekKRGorettaKCHelbergDA, et al.Erosion in bismaleimide polymers and bismaleimide-polymer composites. J Mater Sci Lett1992; 11: 1143–1144.
26.
BarkoulaNMPapanicolaouGCKarger-KocsisJ. Prediction of the residual tensile strengths of carbon-fiber/epoxy laminates with and without interleaves after solid particle erosion. Compos Sci Technol2002; 62: 121–130.
27.
BarkoulaNMKarger-KocsisJ. Solid particle erosion of unidirectional GF reinforced EP composites with different fiber/matrix adhesion. J Reinforc Plast Compos2002; 21: 1377–1388.
28.
ArjulaSHarshaAP. Study of erosion efficiency of polymers and polymer composites. Polym Test2006; 25: 188–196.
29.
YangNNayeb-HashemiH. The effect of solid particle erosion on the mechanical properties and fatigue life of fiber-reinforced composites. J Compos Mater2007; 41: 559–574.
30.
YangNHNayeb-HashemiHVaziriA. Non-destructive evaluation of erosion damage on E-glass/epoxy composites. Composites Part A2008; 39: 56–66.
31.
AmaroAMLoureiroAJRNetoMA, et al.Residual impact strength of glass/epoxy composite laminates after solid particle erosion. Compos Struct2020; 238: 112026.
32.
MiyazakiNHamaoT. Effect of interfacial strength on erosion behavior of FRPs. J Compos Mater1996; 30: 35–50.
33.
MiyazakiNFunakuraS. Solid particle erosion behavior of FRP degraded by hot water. J Compos Mater1998; 32: 1295–1305.
34.
TewariUSHarshaAPHägerAM, et al.Solid particle erosion of unidirectional carbon fibre reinforced polyetheretherketone composites. Wear2002; 252: 992–1000.
35.
TewariUSHarshaAPHägerAM, et al.Solid particle erosion of carbon fibre- and glass fibre-epoxy composites. Compos Sci Technol2003; 63: 549–557.
36.
SrivastavaVK. Effects of wheat starch on erosive wear of E-glass fibre reinforced epoxy resin composite materials. Mater Sci Eng2006; 435–436: 282–287.
HarshaAPThakreAA. Investigation on solid particle erosion behaviour of polyetherimide and its composites. Wear2007; 262: 807–818.
39.
MiyazakiN. Solid particle erosion behavior of FRPs with prior impact damage. J Compos Mater2007; 41: 703–712.
40.
SinmazçelikTTaşkiranI. Erosive wear behaviour of polyphenylenesulphide (PPS) composites. Mater Des2007; 28: 2471–2477.
41.
PatnaikASatapathyAMahapatraSS, et al.A modeling approach for prediction of erosion behavior of glass fiber-polyester composites. J Polym Res2008; 15: 147–160.
42.
PatnaikASatapathyAMahapatraSS, et al.A Taguchi approach for investigation of erosion of glass fiber-polyester composites. J Reinforc Plast Compos2008; 27: 871–888.
FouadYEl-MeniawiMAffiA. Erosion behaviour of epoxy based unidirectional (GFRP) composite materials. Alex Eng J2011; 50: 29–34.
45.
BiswasSDeoBPatnaikA, et al.Effect of fiber loading and orientation on mechanical and erosion wear behaviors of glass-epoxy composites. Polym Compos2011; 32: 665–674.
46.
DrenskyGHamedATabakoffW, et al.Experimental investigation of polymer matrix reinforced composite erosion characteristics. Wear2011; 270: 146–151.
47.
ZhangNYangFGuerraD, et al.Enhancing particle erosion resistance of glass-reinforced polymeric composites using carbon nanofiber-based nanopaper coatings. J Appl Polym Sci2013; 129: 1875–1881.
HarshaAPJhaSK. Erosive wear studies of epoxy-based composites at normal incidence. Wear2008; 265: 1129–1135.
50.
FriedrichK. Erosive wear of polymer surfaces by steel ball blasting. J Mater Sci1986; 21: 3317–3332.
51.
AglanHAChenockTA. Erosion damage features of polyimide thermoset composites. SAMPE Q1993; 24: 41–47.
52.
BarkoulaNMKarger-KocsisJ. Processes and influencing parameters of the solid particle erosion of polymers and their composites. J Mater Sci2002; 37: 3807–3820.
53.
ShockeyDARowcliffeDJDaoKC, et al.Particle impact damage in silicon nitride. J Am Ceram Soc1990; 73: 1613–1619.
54.
ChoiSR. Foreign object damage behavior in a silicon nitride ceramic by spherical projectiles of steels and brass. Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing2008; 497: 160–167.
55.
ChoiSRWrightJMFaucettDC, et al.Phenomena of foreign object damage by spherical projectiles in EB-PVD thermal barrier coatings of turbine airfoils. J Eng Gas Turbines Power2014; 136: 102603.
56.
KedirNFaucettDSanchezL, et al.Foreign object damage in an oxide/oxide ceramic matrix composite under prescribed tensile loading. J Eng Gas Turbines Power2017; 139: 021301.
