Abstract
The composite materials exposed to dynamic loads may suffer damage at strength value, which is under own yield strengths. Also, improper environmental conditions accelerate the damage process. In this study, the effect of heavy chemical environments such as acid and alkaline and retaining time for these environments on flexural strength and fatigue behavior of E-glass/epoxy laminated composites was investigated. In this content, glass/epoxy (G8) having eight layers was produced by using the hand lay-up method. The produced composite materials were retained into acidic and alkali solution having 5%, 15%, and 25% concentration a period of 1, 2, 3, and 4 months. A computer-controlled fixed-end type fatigue test machine capable of tilting 10 test samples at the same time was designed and manufactured to determine the fatigue behavior of composite samples. Fatigue behavior of glass/epoxy was determined under dynamic flexural load which corresponds to 80%, 70%, 60%, 50%, and 40% of static three-point bending strength of the test sample. SEM image of damaged specimens was taken to describe the failure mechanism of damage which occurs after fatigue. Also, to better understand environmental condition on the fatigue life, results were compared with results of glass/epoxy laminated composites, which were not retained into any environments (0%).
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References
Allah MA, Abdin EM, Selmy AI, Khashaba UA (1997) Effect of mean stress on fatigue behaviour of GFRP pultruded rod composites. Compos Part Appl Sci Manuf 28:87–91
ASTM D671-93 (1993) Standard test method for flexural fatigue of plastics by constant-amplitude-of- force
ASTM D7264/D7264M-07 (2015) Standard test method for flexural properties of polymer matrix composite materials. ASTM International
Ay İ, Sakin R, Okoldan G (2008) An improved design of apparatus for multi-specimen bending fatigue and fatigue behaviour for laminated composites. Mater Des 29:397–402. https://doi.org/10.1016/j.matdes.2007.01.017
Bajracharya RM, Manalo AC, Karunasena W, Lau K (2017) Durability characteristics and property prediction of glass fibre reinforced mixed plastics composites. Compos Part B Eng 116:16–29. https://doi.org/10.1016/j.compositesb.2017.02.027
Balcıoğlu HE, Sakin R, Dumanay A, Gün H (2018) Kompozit Levhalar için Çok Numuneli Ankastre-Tip Eğilmeli Yorulma Test Makinesinin Geliştirilmesi. Gümüşhane Üniversitesi Fen Bilim Enstitüsü Derg. https://doi.org/10.17714/gumusfenbil.304488
Belingardi G, Cavatorta M (2006) Bending fatigue stiffness and strength degradation in carbon–glass/epoxy hybrid laminates: Cross-ply versus angle-ply specimens. Int J Fatigue 28:815–825. https://doi.org/10.1016/j.ijfatigue.2005.11.009
Belingardi G, Cavatorta MP, Frasca C (2006) Bending fatigue behavior of glass–carbon/epoxy hybrid composites. Compos Sci Technol 66:222–232. https://doi.org/10.1016/j.compscitech.2005.04.031
Borrego LP, Costa JDM, Ferreira JAM, Silva H (2014) Fatigue behaviour of glass fibre reinforced epoxy composites enhanced with nanoparticles. Compos Part B Eng 62:65–72. https://doi.org/10.1016/j.compositesb.2014.02.016
Catangiu A, Dumitrescu AT, Ungureanu D (2011) Experimental results for bending fatigue behaviour of glass-epoxy composite materials. Sci Bull Valahia Univ Mater Mech 6:47–51
Cordeiro GC, Vieira JD, Có CM (2016) Tensile properties and color and mass variations of GFPR composites under alkaline and ultraviolet exposures. Matér Rio 21:1–10. https://doi.org/10.1590/s1517-707620160001.0001
Degallaix G, Hassaı̈ni D, Vittecoq E (2002) Cyclic shearing behaviour of a unidirectional glass/epoxy composite. Int J Fatigue 24:319–326
Di Franco G, Marannano G, Pasta A, Mariotti GV (2011) Design and use of a fatigue test machine in plane bending for composite specimens and bonded joints. Adv Compos Mater-Ecodesign Anal, InTech
Ellyin F, Kujawski D (1995) Tensile and fatigue behaviour of glassfibre/epoxy laminates. Constr Build Mater 9:425–430
Fang Y, Wang K, Hui D, Xu F, Liu W, Yang S et al (2017) Monitoring of seawater immersion degradation in glass fibre reinforced polymer composites using quantum dots. Compos Part B Eng 112:93–102. https://doi.org/10.1016/j.compositesb.2016.12.043
Ferreira JM, Pires JTB, Costa JD, Zhang ZY, Errajhi OA, Richardson M (2005) Fatigue damage analysis of aluminized glass fiber composites. Mater Sci Eng A 407:1–6. https://doi.org/10.1016/j.msea.2005.07.009
Kar NK, Barjasteh E, Hu Y, Nutt SR (2011) Bending fatigue of hybrid composite rods. Compos Part Appl Sci Manuf 42:328–336. https://doi.org/10.1016/j.compositesa.2010.12.012
Khashaba UA (2003) Fatigue and reliability analysis of unidirectional GFRP composites under rotating bending loads. J Compos Mater 37:317–331
Khashaba UA, Selmy AI, El-Sonbaty IA, Megahed M (2007) Behavior of notched and unnotched [0/± 30/± 60/90]s GFR/EPOXY composites under static and fatigue loads. Compos Struct 81:606–613. https://doi.org/10.1016/j.compstruct.2006.11.005
Koricho EG, Belingardi G, Beyene AT (2014) Bending fatigue behavior of twill fabric E-glass/epoxy composite. Compos Struct 111:169–178. https://doi.org/10.1016/j.compstruct.2013.12.032
Liang S, Gning PB, Guillaumat L (2012) A comparative study of fatigue behaviour of flax/epoxy and glass/epoxy composites. Compos Sci Technol 72:535–543. https://doi.org/10.1016/j.compscitech.2012.01.011
Manjunatha CM, Taylor AC, Kinloch AJ, Sprenger S (2010) The tensile fatigue behaviour of a silica nanoparticle-modified glass fibre reinforced epoxy composite. Compos Sci Technol 70:193–199. https://doi.org/10.1016/j.compscitech.2009.10.012
Nonaka I, Setowaki S, Ichikawa Y (2014) Effect of load frequency on high cycle fatigue strength of bullet train axle steel. Int J Fatigue 60:43–47. https://doi.org/10.1016/j.ijfatigue.2013.08.020
Osti de Moraes DV, Magnabosco R, Bolognesi Donato GH, Prado Bettini SH, Antunes MC (2015) Influence of loading frequency on the fatigue behaviour of coir fibre reinforced PP composite. Polym Test 41:184–190. https://doi.org/10.1016/j.polymertesting.2014.12.002
Pach E, Korin I, Ipiña JP (2012) Simple fatigue testing machine for fiber-reinforced polymer composite. Exp Tech 36:76–82. https://doi.org/10.1111/j.1747-1567.2011.00713.x
Philippidis TP, Vassilopoulos AP (2002) Complex stress state effect on fatigue life of GRP laminates: part I, experimental. Int J Fatigue 24:813–823
Pillay S, Vaidya UK, Janowski GM (2009) Effects of moisture and UV exposure on liquid molded carbon fabric reinforced nylon 6 composite laminates. Compos Sci Technol 69:839–846. https://doi.org/10.1016/j.compscitech.2008.03.021
Sakin R (2016) Fatigue-life estimation and material selection for commercial-purity aluminum sheets. Res Eng Struct Mater. https://doi.org/10.17515/resm2015.30me1205
Sakin R, Ay İ, Yaman R (2008) An investigation of bending fatigue behavior for glass-fiber reinforced polyester composite materials. Mater Des 29:212–217. https://doi.org/10.1016/j.matdes.2006.11.006
Shokrieh MM, Esmkhania M, Taheri-Behrooz F (2014) Fatigue modeling of chopped strand mat/epoxy composites. Struct Eng Mech 50:231–240. https://doi.org/10.12989/sem.2014.50.2.231
Van Paepegem W, Degrieck J (2002) Coupled residual stiffness and strength model for fatigue of fibre-reinforced composite materials. Compos Sci Technol 62:687–696
Yamamoto T, Kokubu A, Sakai T (2013) Development and several additional performances of dual spindle rotating bending fatigue testing machine GIGA QUAD. ICF13
Yun GJ, Abdullah ABM, Binienda W (2012) Development of a closed-loop high-cycle resonant fatigue testing system. Exp Mech 52:275–288. https://doi.org/10.1007/s11340-011-9486-z
Acknowledgements
This study was sponsored by Usak University Scientific Research Coordination Agency (BAP Project Number: UBAP012014/MF013).
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Balcıoğlu, H.E., Sakin, R. & Gün, H. The Effect of Different Environmental Condition on Flexural Strength and Fatigue Behavior of E-Glass/Epoxy Composites. Iran J Sci Technol Trans Mech Eng 45, 165–180 (2021). https://doi.org/10.1007/s40997-020-00397-y
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DOI: https://doi.org/10.1007/s40997-020-00397-y