Buckling Resistance of GFRP Sandwich Infill Panels with Different Cores under Increased Temperatures

Authors: Viriyavudh Sim, Woo Young Jung

Abstract:

This paper presents numerical analysis in terms of buckling resistance of GFRP sandwich infill panels system under the influence of increased temperature on the foam core. Failure mode under in-plane compression is studied by means of numerical analysis with ABAQUS platform. Parameters considered in this study are contact length and both the type of foam for core and the variation of its module elastic under the thermal influence. Increment of temperature is considered in static cases and only applied to core. Indeed, it is proven that the effect of temperature alters the mechanical properties of the entire panel system. Moreover, the rises of temperature result in a decrease in strength of the panel. This is due to the polymeric nature of this material. Additionally, the contact length also displays the effect on performance of infill panel. Their significance factors are based on type of polymer for core. Therefore, by comparing difference type of core material, the variation can be reducing.

Keywords: Buckling, contact length, foam core, temperature dependent.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1110547

References:

[1] Aref, Amjad J., and Woo-Young Jung, “Energy-dissipating polymer matrix composite-infill wall system for seismic retrofitting,” in Journal of Structural Engineering, 129(4), pp. 440-448, 2003.
[2] Gibson, Lorna J., and Michael F. Ashby, “Cellular solids: structure and properties”, Cambridge university press, 1997.
[3] Jones, Robert M., “Mechanics of composite materials”, Taylor & Francis, Philadelphia, 1998.
[4] Jung, Woo-Young, and Amjad J. Aref, “Analytical and numerical studies of polymer matrix composite sandwich infill panels,” in Composite Structures, 68(3), pp. 359-370, 2005.
[5] Pandini, S., and A. Pegoretti, “Time and temperature effects on Poisson's Ratio of Polybutylene Terephthalate,” in Express Polym. Lett., 5, pp. 685-697, 2011.
[6] P.H. Mott, J.R. Dorgan, C.M. Roland, “The bulk modulus and Poisson’s Ratio of incompressible materials,” in Journal of Sound and Vibration, 312, pp. 572-575, 2008.
[7] Roylance, David. “Laminated composite plates,” Massachusetts Institute of Technology Cambridge, 2000.
[8] Saneinejad, A. and Hobbs, B. “Inelastic Design of Infilled Frames,” in Journal of Structural Engineering, 121(4), pp. 634-650, 1995.
[9] Systèmes, Dassault, ABAQUS User’s & Theory Manuals—Release 6.13-1, Providence, RI, USA, 2013.
[10] Tobushi, Hisaaki, et al., “Thermo-mechanical properties of polyurethane-shape memory polymer foam,” in Journal of intelligent material systems and structures, 12(4), pp. 283-287, 2001.
[11] Viriyavudh Sim, BuSeog Ju, and Woo-Young Jung, “Buckling of polymer matrix composite sandwich infill panels under different thermal environment” in ICDMCE, pp. 93-100, 2015.