The extensive experimental investigation aimed to assess the effects of hybrid epoxy resin with micro-fibrillated cellulose on tensile quasi-static and fatigue behaviour of open hole carbon plain weave composites. The hybridization of the matrix allowed an improved damage tolerance of the composite leading to increase of the quasi-static tensile strength and extension of the fatigue life. The enhanced mechanical performance of the notched composites was connected to the bridging effect of cellulose microfibrils preventing or delaying the cracks propagation in the matrix and along the fibres interface. The better distribution of the stress state was assessed by digital image correlation strain maps around the hole and the imparted fatigue damage was analysed by scanning electron microscope and X-ray micro-computed tomography visualizations.
CamanhoPPMatthewsFL. Stress analysis and strength prediction of mechanically fastened joints in FRP: a review. Compos Part A1997; 28: 529–547.
2.
FujiiTShiinaTOkuboK. Fatigue notch sensitivity of glass woven fabric composites having a circular hole under tension/torsion biaxial loading. J Compos Mater1994; 28: 234–251.
3.
KawaiMKasugaA. Anisotropic size effect law for notched strength of unidirectional carbon/epoxy laminates – part 2: comparison with experiment. J Compos Mater2017; 51: 603–621.
4.
DaiSCunninghamPMarshallSet al.Open hole quasi-static and fatigue characterisation of 3D woven composites. Compos Struct2015; 131: 765–774.
5.
Liu S, Chevali VS, Xu Z, et al. A review of extending performance of epoxy resins using carbon nanomaterials. Compos Part B 2018; 136: 197–214. DOI: 10.1016/j.compositesb.2017.08.020.
6.
WichmannMHSumflethJGojnyFHet al.Glass-fibre-reinforced composites with enhanced mechanical and electrical properties – benefits and limitations of a nanoparticle modified matrix. Eng Fracture Mech2006; 73: 2346–2359.
7.
BorregoLPCostaJDFerreiraJAet al.Fatigue behaviour of glass fibre reinforced epoxy composites enhanced with nanoparticles. Compos Part B2014; 62: 65–72.
8.
ShaoYOkuboKFujiiTet al.Effect of physical modification of matrix by nano(polyvinyl alcohol) fibers on fatigue performance of carbon fiber fabric-reinforced vinylester composites. J Compos Mater2016; 50: 4065–4075.
9.
TianYZhangHZhangZ. Influence of nanoparticles on the interfacial properties of fiber-reinforced-epoxy composites. Compos Part A2017; 98: 1–8.
10.
ZhaoQHoaSV. Toughening mechanism of epoxy resins with micro/nano particles. J Compos Mater2007; 41: 201–219.
11.
Turbak A, Snyder F and Sandberg K. Suspensions containing microfibrillated cellulose. Patent 4,378,381, USA, 1983.
12.
BledzkiAGassanJ. Composites reinforced with cellulose based fibers. Prog Polym Sci1999; 24: 221–274.
13.
SoykeabkaewNArimotoNNishinoTet al.All-cellulose composites by surface selective dissolution of aligned ligno-cellulosic fibres. Compos Sci Technol2008; 68: 2201–2207.
14.
GabrMHElrahmanMAOkuboKet al.Effect of microfibrillated cellulose on mechanical properties of plain-woven CFRP reinforced epoxy. Compos Struct2010; 92: 1999–2006.
15.
CarvelliVBettiAFujiiT. Fatigue and Izod impact performance of carbon plain weave textile reinforced epoxy modified with cellulose microfibrils and rubber nanoparticles. Compos Part A2016; 84: 26–35.
16.
PerssonEErikssonIZackrissonL. Effects of hole machining defects on strength and fatigue life of composite laminates. Compos Part A1997; 28: 141–151.
17.
Vaziri SereshkMRMohmmadi BidhendiH. Evaluation of revealing and quantifying techniques available for drilling delamination in woven carbon fiber-reinforced composite laminates. J Compos Mater2016; 50: 1377–1385.
CarvelliVGramelliniGLomovSVet al.Fatigue behavior of non-crimp 3D orthogonal weave and multi-layer plain weave E-glass reinforced composites. Compos Sci Technol2010; 70: 2068–2076.
20.
BroughtonWGowerMLodeiroMet al.An experimental assessment of open-hole tension–tension fatigue behaviour of a GFRP laminate. Compos Part A2011; 42: 1310–1320.
21.
AymerichFFoundMS. Response of notched carbon/PEEK and carbon/epoxy laminates subjected to tension fatigue loading. Fatigue Fracture Eng Mater Struct2000; 23: 675–683.
22.
Rubio-GonzalezCVelascoFMartınezJ. Analysis of notched woven composites and fiber metal laminates with previous fatigue damage. J Compos Mater2016; 50: 885–897.
23.
GorbatikhLLomovSV. Damage accummulation in textile composites. In: Modeling damage, fatigue and failure of composite materials, Cambridge: Elsevier (Woodhead Publishers, 2016, pp. 41–59.
24.
CarvelliVJainALomovSV. Fatigue of textile and short fiber reinforced composites, London: ISTE Ltd and John Wiley & Sons Inc, 2017.
25.
CamineroMALopez-PedrosaMPinnaCet al.Damage monitoring and analysis of composite laminates with an open hole and adhesively bonded repairs using digital image correlation. Compos Part B2013; 53: 76–91.
26.
HsiehTHKinlochAJMasaniaKet al.The toughness of epoxy polymers and fibre composites modified with rubber microparticles and silica nanoparticles. J Mater Sci2010; 45: 1193–1210.
27.
KawaiMMorishitaMFuziKet al.Effects of matrix ductility and progressive damage on fatigue strengths of unnotched and notched carbon fibre plain woven roving fabric laminates. Compos Part A1996; 27: 493–502.
28.
Afaghi-KhatibiAYeLMaiYW. An experimental study of the influence of fibre–matrix interface on fatigue tensile strength of notched composite laminates. Compos Part B2001; 32: 371–377.
29.
YudhantoAIwahoriYWatanabNet al.Open hole fatigue characteristics and damage growth of stitched plain weave carbon/epoxy laminates. Int J Fatigue2010; 43: 12–22.
30.
GagelAFiedlerBSchulteK. On modelling the mechanical degradation of fatigue loaded glass-fibre non-crimp fabric reinforced epoxy laminates. Compos Sci Technol2006; 66: 657–664.
31.
GudeMHufenbachWKochI. Damage evolution of novel 3D textile-reinforced composites under fatigue loading conditions. Compos Sci Technol2010; 70: 186–192.
32.
CarvelliVPazminoJLomovSVet al.Quasi-static and fatigue tensile behavior of a 3D rotary braided carbon/epoxy composite. J Compos Mater2013; 47: 3195–3209.
33.
D’AmoreAGrassiaL. Phenomenological approach to the study of hierarchical damage mechanisms in composite materials subjected to fatigue loadings. Compos Struct2017; 175: 1–6.
34.
AmbuRAymerichFBertolinoF. Investigation of the effect of damage on the strength of notched composite laminates by digital image correlation. J Strain Anal2005; 40: 451–461.
