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Shear Properties and Load-Deflection Response of Heated Cross-Ply Glass-Epoxy Composite Short-Beams Subjected to Three-Point-Bending Tests
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Abstract
Composite structures are being used in many engineering applications, where the structural components must operate at elevated temperatures. Consequently, there is a need to study the mechanical properties of composite materials by testing heated specimens which have elevated temperature. The effect of heat on the matrix dominated mechanical properties, such as the Interlaminar Shear Strength (ILSS), is of primary interest due to the impact of thermal loading on the mechanical response of plastics. The horizontal shear test with a short-beam specimen in three-point-bending is used as a general method of evaluation for the shear properties in fiber-reinforced composites, because of its simplicity. In this work, the ILSS and load-deflection response of cross-ply glass-epoxy resin composites is determined in seven different fiber directions, with short-beam three-point-bending tests of heated specimens, which have elevated temperature. It is found that short term heating and elevated specimen temperature affects the ILSS and reduces the stiffness of the examined composites, whereas it leads to larger failure deflections. It is also found that the direction of fibers strongly affects the load-deflection response and the ILSS of the heated specimens.
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Aiman, A.F., Tarmizi, A.M., Bakri, B., Hussin, M.S., Hafiezal, M.R.M., Fairuz, M.A., A study on fiber glass composite hovercraft hull with different wall thickness using generative structural analysis, (2012) International Review of Mechanical Engineering (IREME), 6 (6), pp. 1307-1311.
R. M. V. Pavan, V. Saravanan, A. Dinesh A, et al, Hygrothermal effects on painted and unpainted glass/epoxy composites-part B: degradation studies, Journal of Reinforced Plastics and Composites, Vol. 20, n. 12, pp. 1048-1053, 2001.
S. Srihari, A. Revathi, R.M.V.G.K. Rao, Hygrothermal effects on RT-cured glass-epoxy composites in immersion environments. part B: degradation studies, Journal of Reinforced Plastics and Composites, Vol. 21, n. 11, pp. 993-1002, 2002.
ASTM D 794:1977. Standard recommended practice for determining permanent effect of heat on plastics.
E. Sideridis, G.A. Papadopoulos, Short-beam and three-point-bending tests for the study of shear and flexural properties in unidirectional-fiber-reinforced epoxy composites, Journal of Applied Polymer Science, Vol. 93, pp. 63-74, 2004.
E.P. Sideridis, G.S. Bikakis, Shear properties and load-deflection response of cross-ply glass-epoxy composite short-beams subjected to three-point-bending tests, and the effect of moisture absorption, Journal of Applied Polymer Science, Vol. 129, pp. 2244-2252, 2013.
B.C. Ray, Effects of crosshead velocity and sub-zero temperature on mechanical behaviour of hygrothermally conditioned glass fibre reinforced epoxy composites, Materials Science & Engineering A, Vol. 379, pp. 39-44, 2004.
F. Roudet, Y. Desplanques, S. Degallaix, Fatigue of glass/epoxy composite in three-point-bending with predominant shearing, International Journal of Fatigue, Vol. 24, pp. 327-337, 2002.
A.G. Megalhaes, M.F.S.F. de Moura, Application of acoustic emission to study creep behaviour of composite bonded lap shear joints, NDT & E International, Vol. 38, pp. 45-52, 2005.
Y. Li, M. Cordovez, V.M. Karbhari, Dielectric and mechanical characterization of processing and moisture upatake effects in E-glass/epoxy composites, Composites Part B: Engineering, Vol. 34, pp. 383-390, 2003.
G. Mishra, S.R. Mohapatra, P.R. Behera, et al, Environmental stability of GFRP laminated composites : an emphasis on mechanical behaviour, Aircraft Engineering and Aerospace Technology, Vol. 82, n. 4, pp. 258-266, 2010.
F. Pashmforoush, M. Fotouhi, M. Ahmadi, Damage characterization of glass/epoxy composite under three-point bending test using acoustic emission technique, Journal of Materials Engineering and Performance, Vol. 21, pp. 1380-1390, 2012.
J. Yao, G. Ziegmann, Equivalence of moisture and temperature in accelerated test method and its application in prediction of long-term properties of glass-fiber reinforced epoxy pipe specimen, Polymer Testing, Vol. 25, pp. 149-157, 2006.
H.Y. Ling, K.T. Lau, L. Cheng, et al, Utilization of embedded optical fibre sensors for delamination characterization in composite laminates using a static strain method, Smart Materials and Structures, Vol. 14, pp. 1377-1386, 2005.
T.Y. Kam, C.M. Chen, S.H. Yang, Material characterization of laminated composite materials using a three-point-bending technique, Composite Structures, Vol. 88, pp. 624-628, 2009.
V. Pauchard, A. Chateauminois, F. Grosjean, et al, In situ analysis of delayed fibre failure within water-aged GFRP under static fatigue conditions, International Journal of Fatigue, Vol. 24, pp. 447-454, 2002.
Bourouis, F., Mili, F., The effect of the fibre orientation on the failure load of face sheets composite sandwich beams, (2011) International Review of Mechanical Engineering (IREME), 5 (5), pp. 968-972.
Abdul Rahman, M.A., Omar Baki, M.A., Mohd Rafie, A.S., Vartharajoo, R., Material properties of random oriented pressed mat coir fibre/epoxy composites, (2014) International Review of Mechanical Engineering (IREME), 8 (1), pp. 89-93.
R.D. Adams, M.M. Singh, The dynamic properties of fibre-reinforced polymers exposed to hot, wet conditions, Composites Science and Technology, Vol. 56, pp. 977-997, 1996.
S. Kaushal, K. Tankala, R.M.V.G.K. Rao, et al, Some hygrothermal effects on the mechanical behaviour and fractography of glass-epoxy composites with modified interface, Journal of Materials Science, Vol. 26, pp. 6293-6299, 1991.
E. Kalfon, H. Harel, G. Marom, et al, Delamination of laminated composites under the combined effect of nonuniform heating and absorbed moisture, Polymer Composites, Vol. 26, pp. 770-777, 2005.
B.C. Ray, S. Mula, T. Bera, et al, Prior thermal spikes and thermal shocks on mechanical behavior of glass fiber-epoxy composites, Journal of Reinforced Plastics and Composites, Vol. 25, n. 2, pp. 197-213, 2006.
ASTM D 2344:1984. Standard test method for apparent interlaminar shear strength of parallel fiber composites by short-beam method.
F.T. Wallenberger, J.C. Watson, H. Li, Glass fibers, In ASM handbook, Vol. 21: composites (Ohio: ASM, 2001, 27-34).
L.G. Zhao, N.A. Warrior, A.C. Long, A thermo – viscoelastic analysis of process - induced residual stress in fibre-reinforced polymer-matrix composites, Materials Science & Engineering A, Vol. 452-453, pp. 483-498, 2007.
T.A. Osswald, G. Menges, Materials science of polymers for engineers (Hanser, 1996).
B.C. Ray, Effects of changing environment and loading speed on mechanical behavior of FRP composites, Journal of Reinforced Plastics and Composites, Vol. 25, n. 12, pp. 1227-1240, 2006.
Virginia Tech University. Mechanical behavior of polymers, www.chem.vt.edu/chem-dept/marand/lecture23.pdf
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