Numerical Study of the Effect of Temperature Changes on the Failure ‎Behavior of Sandwich Panels with Honeycomb Core ‎

Document Type: Original Article

Authors

1 Department of Mechanical Engineering, Ahvaz branch, Islamic Azad University, Ahvaz,, Iran.‎

2 ‎Department of Mechanical Engineering, Engineering Faculty, Shahid ‎Chamran University of Ahvaz, Ahvaz, Iran

Abstract

In this paper, failure modes of sandwich panels are investigated numerically  using finite element method. For this purpose, four sandwich beams of GFRP laminate skins and Nomex honeycomb core are considered. The models have been chosen so that  they could cover all failure modes according to available experimental failure mode maps. Models are created and analyzed based on standard 3-points bending test, using ASTM   standard C393-62. In order to investigate the effect of loading and sandwich panel parameters on failure behavior, finite element analysis has been utilized. The results are   verified by comparing experimental and theoretical results. The constructed failure mode   map shows dependence of failure mode on the ratio of skin thickness to span length, and honeycomb relative density. To Then, effect of temperature on the failure modes of sandwich panels, has been investigated. Results show that failure modes haven’t depended  on environment temperature and failure load decreases by increasing environmental temperature. The slope of reduction is a function of beam geometrical parameters. Depending on the parameters, the failure loads decrease between 10% to 40% by increasing environmental temperature.

Keywords


[1] T.N. Bitzer Honeycomb technology: materials, design, manufacturing, applications and testing. Springer Science & Business Media; 2012.

[2] H. G. Allen, Analysis and design of structural sandwich panels: the commonwealth and international library: structures and solid body mechanics division. Elsevier, 2013.‏

[3] T. C. Triantafillou, L. J. Gibson, Failure mode maps for foam core sandwich beams. J. Materials Science and Engineering, 95(1987) 37-53.‏

[4] V. Birman, G. A. Kardomateas, G. J. Simitses, R. Li, Response of a sandwich panel subject to fire or elevated temperature on one of the surfaces. Composites Part A: Applied Science and Manufacturing, 37(7) (2006) 981-988.‏

[5] C. A. Steeves, N. A. Fleck, Collapse mechanisms of sandwich beams with composite faces and a foam core, loaded in three-point bending. Part II: experimental investigation and numerical modelling. International Journal of Mechanical Sciences46(4) (2004) 585-608.

[6] R. M. Jones, Mechanics of composite materials (Vol. 193). Washington, DC: Scripta Book Company,1975.‏

[7] V. Rizov, A. Shipsha, D. Zenkert, Indentation study of foam core sandwich composite panels. Composite structures, 69(1) (2005) 95-102.‏

[8] J. Zhang, M.F. Ashby the out-of-plane properties of honeycombs. International journal of mechanical sciences. 1;34(6) (1992) 475-89.

[9] A. Petras, M. P. F. Sutcliffe, Failure mode maps for honeycomb sandwich panels. Composite structures, 44(4) (1999) 237-252.‏

[10] Z. Wang, Z. Li and W. Xiong, Experimental investigation on bending behavior of honeycomb sandwich panel with ceramic tile face-sheet. Composites Part B: Engineering, 164, (2019) 280-286.‏

[11] G. Sun, D. Chen, H. Wang, P. J. Hazell and Q. Li, High-velocity impact behavior of aluminum honeycomb sandwich panels with different structural configurations. International Journal of Impact Engineering, 122, (2018)119-136.

[12] Y. Ou, D. Zhu, H. Zhang, L. Huang, Y. Yao, G. Li, B. Mobasher, Mechanical characterization of the tensile properties of glass fiber and its reinforced polymer (GFRP) composite under varying strain rates and temperatures. Polymers. 2016 May 19;8(5):196.

[13] Y. Bai, N.L. Post, J.J. Lesko, T. Keller Experimental investigations on temperature-dependent thermo-physical and mechanical properties of pultruded GFRP composites. Thermochimica Acta. 469(1-2) (2008) 28-35.

[14] Nomex type 410 technical data sheet. USA: E.I. Du Pont de Nemours; 2012.

[15] L. Gornet, S. Marguet, G. Marckmann Modeling of Nomex® honeycomb cores, linear and nonlinear behaviors. Mechanics of advanced Materials and structures. 16;14(8) (2007)589-601.

[16] C. Florens, E. Balmes, F. Clero, M. Corus, Accounting for glue and temperature effects in Nomex based honeycomb models. In International Conference on Noise and Vibration Engineering, ISMA 2006 Sep 1.