Structural Engineering and Mechanics

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Effect of hybrid thermal cycling shocks on the mechanical properties of structural composites

  • Bayat, Abbas (Department of Mechanical Engineering, Shahr-e-Qods Branch, Islamic Azad University) ;
  • Damircheli, Mehrnoosh (Department of Mechanical Engineering, Shahr-e-Qods Branch, Islamic Azad University) ;
  • Esmkhani, Masood (Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology)
  • Received : 2020.03.28
  • Accepted : 2021.06.09
  • Published : 2021.08.10
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Abstract

In the present research, tensile and flexural mechanical properties of glass epoxy structural composites under simultaneous thermal cycling loading and thermal shocks called hybrid thermal cycling shocks, have been studied. A series of tensile and flexural tests under static and hybrid thermal loading conditions (15 and 30 thermal cycles with -70℃ (Degrees Celsius) and +100℃ (Degrees Celsius) thermal shocks), were applied on the structural composite specimens and the obtained results are fully compared and investigated. It was found that shocks have a more effective role in changing stiffness in comparison to cycles but the tensile strength of glass/epoxy composites was influenced by the hybrid thermal loads more sensible. For instance, tensile strength was reduced by 12.1% under 30 cycles and thermal shocks. In addition, the flexural bending strength and stiffness were decreased in comparison to static loading conditions. The flexural bending strength and stiffness under hybrid thermal loadings were changed and reduced by 27.64% and 7.2% under 30 cycles under thermal shocks respectively.

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References

  1. Abdollahi Azghan, M., Asghari Arpatappeh, F. and Eslami-Farsani, R. (2017), "Experimental study of the effect of cryogenic cycling and metal surface treatment on flexural properties of aluminum-epoxy/basalt fibers laminate composite", Iran. J. Manuf. Eng., 4(1), 15-24.
  2. Anashkin, O., Keilin, V. and Patrikeev, V. (1999), "Cryogenic vacuum tight adhesive", Cryogen., 39(9), 795-798. https://doi.org/10.1016/S0011-2275(99)00089-2.
  3. Chawla, K. (1973), "Thermal cycling of copper matrix-tungsten fiber composites: A metallographic study", Metallography, 6(2), 155-169. https://doi.org/10.1016/0026-0800(73)90007-4.
  4. Couchman, L. and Mouritz, A.P. (2006), "Modeling of naval composite structures in fire", Cooperative Research Centre for Advanced Composite Structures
  5. Ebrahimnezhad-Khaljiri, H. and Eslami-Farsani, R. (2015), "The effect of hybridization on thermal and mechanical properties of glass/oxidized PAN fibers-polymer composites", Fib. Polym., 16(11), 2445-2450. https://doi.org/10.1007/s12221-015-5296-8.
  6. Eslami-Farsani, R., Reza Khalili, S.M. and Najafi, M. (2013), "Effect of thermal cycling on hardness and impact properties of polymer composites reinforced by basalt and carbon fibers", J. Therm. Stress., 36(7), 684-698. https://doi.org/10.1080/01495739.2013.787846.
  7. Fan, X. and Wu, Z. (2016), "C 0-type Reddy's theory for composite beams using FEM under thermal loads", Struct. Eng. Mech., 57(3), 457-471. https://doi.org/10.12989/sem.2016.57.3.457.
  8. Ibekwe, S.I., Mensah, P.F., Li, G., Pang, S.S. and Stubblefield, M.A. (2007), "Impact and post impact response of laminated beams at low temperatures", Compos. Struct., 79(1), 12-17. https://doi.org/10.1016/j.compstruct.2005.11.025.
  9. Jafari, A., Ashrafi, H., Bazli, M. and Ozbakkaloglu, T. (2019), "Effect of thermal cycles on mechanical response of pultruded glass fiber reinforced polymer profiles of different geometries", Compos. Struct., 223, 110959. https://doi.org/10.1016/j.compstruct.2019.110959.
  10. Kang, S.G., Kim, M.G. and Kim, C.G. (2007), "Evaluation of cryogenic performance of adhesives using composite-aluminum double-lap joints", Compos. Struct., 78(3), 440-446. https://doi.org/10.1016/j.compstruct.2005.11.005.
  11. Khalili, S.M.R., Najafi, M. and Eslami-Farsani, R. (2017), "Effect of thermal cycling on the tensile behavior of polymer composites reinforced by basalt and carbon fibers", Mech. Compos. Mater., 52(6), 807-816. https://doi.org/10.1007/s11029-017-9632-5.
  12. Khodjet-Kesba, M., Benkhedda, A., Adda Bedia, E. and Boukert, B. (2018), "On transverse matrix cracking in composite laminates loaded in flexure under transient hygrothermal conditions", Struct. Eng. Mech., 67(2), 165-173. http://doi.org/10.12989/sem.2018.67.2.165.
  13. Kim, M.G., Kang, S.G., Kim, C.G. and Kong, C.W. (2007), "Tensile response of graphite/epoxy composites at low temperatures", Compos. Struct., 79(1), 84-89. https://doi.org/10.1007/s11029-017-9632-5.
  14. Kubit, A., Trzepiecinski, T., Klonica, M., Hebda, M. and Pytel, M. (2019), "The influence of temperature gradient thermal shock cycles on the interlaminar shear strength of fibre metal laminate composite determined by the short beam test", Compos. Part B: Eng., 176, 107217. https://doi.org/10.1016/j.compositesb.2019.107217.
  15. Lee, S.M. (1992), Handbook of Composite Reinforcements, John Wiley & Sons
  16. Mahato, K.K., Rathore, D.K., Dutta, K. and Ray, B.C. (2017), "Effect of loading rates of severely thermal-shocked glass fiber/epoxy composites", Compos. Commun., 3, 7-10. https://doi.org/10.1016/j.coco.2016.11.001.
  17. Ray, B. (2005), "Effects of thermal and cryogenic conditionings on mechanical behavior of thermally shocked glass fiber-epoxy composites", J. Reinf. Plast. Compos., 24(7), 713-717. https://doi.org/10.1177/0731684405046081.
  18. Ray, B.C. (2006), "Effect of thermal shock on interlaminar strength of thermally aged glass fiber-reinforced epoxy composites", J. Appl. Polym. Sci., 100(3), 2062-2066. https://doi.org/10.1002/app.23019.
  19. Shettar, M., Kini, U.A., Sharma, S., Hiremath, P. and Gowrishankar, M. (2019), "Investigation and optimization of thermal shock effects on the properties and microstructure of Nanoclay-Glass Fiber Reinforced Epoxy Composites", Mater. Res. Exp., 6(10), 105360. https://doi.org/10.1088/2053-1591/ab3f67
  20. Surendra Kumar, M., Sharma, N. and Ray, B. (2008), "Mechanical behavior of glass/epoxy composites at liquid nitrogen temperature", J. Reinf. Plast. Compos., 27(9), 937-944. https://doi.org/10.1177/0731684407085877.
  21. Torabizadeh, M., Shokrieh, M. and Fereidoon, A. (2010), "Progressive damage analysis of glass-epoxy laminated composites under static tensile loading at low temperature". Model. Eng., 8(21), 1.
  22. Usami, S., Suzuki, T., Ejima, H. and Asano, K. (1999), "Thermo-mechanical properties of epoxy GFRPs used in superconducting magnet winding", Cryogen., 39(11), 905-914. https://doi.org/10.1016/S0011-2275(99)00123-X.