Mechanical Behavior and Failure Mechanisms of Carbon Fiber Composite Pyramidal Core Sandwich Panel after Thermal Exposure

doi:10.1016/j.jmst.2013.04.013

Abstract

Abstract:

An attempt has been made here to evaluate the effect of thermal exposure on the mechanical behavior and failure mechanisms of carbon fiber composite sandwich panel with pyramidal truss core under axial compression. Analytical formulae for the collapse strength of composite sandwich panel after thermal exposure were derived. Axial compression tests of composite laminates and sandwich panels after thermal exposure were conducted at room temperature to assess the degradation caused by the thermal exposure. Experimental results showed that the failure of sandwich panel are not only temperature dependent, but are time dependent as well. The decrease in residual compressive strength is mainly attributed to the degradation of the matrix and the degradation of fiber–matrix interface, as well as the formation of cracks and pores when specimens are exposed to high temperature. The measured failure loads obtained in the experiments showed reasonable agreement with the analytical predictions.

Key words: Composite, Thermal exposure, Mechanical properties, Sandwich panel

Jiayi Liu, Zhengong Zhou, Linzhi Wu, Li Ma. Mechanical Behavior and Failure Mechanisms of Carbon Fiber Composite Pyramidal Core Sandwich Panel after Thermal Exposure[J]. J. Mater. Sci. Technol., DOI: 10.1016/j.jmst.2013.04.013.

References

[1] B. Wang, L.Z. Wu, L. Ma, Q. Wang, S.Y. Du, J. Mater. Sci.Technol. 25 (2009) 547-550.

[2] H.L. Fan, F.H. Meng, W. Yang, Compos. Struct. 81 (2007)533-539.

[3] B. Wang, L.Z. Wu, L. Ma, J.C. Feng, Compos. Part B 42 (2011)891-897.

[4] J. Xiong, L. Ma, L.Z. Wu, B. Wang, A. Vaziri, Compos. Struct. 92(2010) 2695-2702.

[5] M.R. Maheri, R.D. Adams, J. Hugon, J. Mater. Sci. 43 (2008)6604-6618.

[6] K. Finnegan, G. Kooistra, H.N.G. Wadley, V.S. Deshpande, Int. J.Mater. Res. 98 (2007) 1264-1272.

[7] Y. Bai, T. Keller, T. Vallée, Compos. Sci. Technol. 68 (2008) 3099-3106.

[8] S.K. Foster, L.A. Bisby, New Orleans, in: Proceedings of the 7^th International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures (FRPRCS-7), November 7-10, 2005.

[9] J. Kim, W.I. Lee, S.W. Tsai, Compos. Part B 33 (2002) 531-543.

[10] B. Wang, L.Z. Wu, L. Ma, Y.G. Sun, S.Y. Du, Mater. Des. 31(2010) 2659-2663.

[11] J. Xiong, A. Vaziri, L. Ma, J. Papadopoulos, L.Z. Wu, Compos.Struct. 94 (2012) 793-801.

[12] J. Xiong, L. Ma, L.Z. Wu, J.Y. Liu, A. Vaziri, Compos. Part B 42(2011) 938-945.

[13] H.L. Fan, W. Yang, B. Wang, Y. Yan, Q. Fu, D.N. Fang, Z. Zhuang,Tsinghua Sci. Technol. 11 (2006) 515-522.

[14] J.Y. Liu, Z.G. Zhou, L. Ma, J. Xiong, L.Z. Wu, Compos. Part B 42(2011) 1860-1866.

[15] M. Li, L.Z.Wu, L. Ma, B.Wang, Z.X. Guan, J. Mater. Sci. Technol.27 (2011) 570-576.

[16] I. Ammar-Khodja, C. Picard, M. Fois, P. Netchitaïlo, Compos. Sci.Technol. 69 (2009) 1427-1431.

[17] M.H. Song, J.H. Kweon, S.K. Kim, C. Kim, Compos. Struct. 86(2008) 125-134.

[18] L.J. Burcham, R.F. Eduljee, J.W. Gillespie, Polym. Compos. 16(1995) 507-517.

[19] M. Akay, G.R. Spratt, B. Meenan, Compos. Sci. Technol. 63 (2003)1053-1059.

[20] P. Gu, R.J. Asaro, Compos. Struct. 82 (2008) 413-421.

[21] S.J. Ng, R.J. Cramer, P.A. Mehrkam, Orlando FL, in: Proceedings of the 29th International SAMPE Technical Conference, May 4-8,1997.

[22] D.B. Cleary, C.D. Cassino, R. Tortorice, J. Reinf, Plast. Compos.22 (2003) 881-895.

[23] F. Cote, R. Biagi, H. Bart-Smith, V.S. Deshpande, Int. J. Solids Struct. 44 (2007) 3533-3556.

[24] H.G. Allen, Analysis and Design of Structural Sandwich Panels,Pergamon Press, Oxford, 1969.

[25] V.S. Deshpande, N.A. Fleck, Int. J. Solids Struct. 38 (2001) 6275-6305.

[26] ASTM: 3410-75, Compressive Properties of Unidirectional or Cross-ply Fiber-resin Composites e Part 36: Plastics-materials, Film, Reinforced and Cellular Plastics; High Modulus Fibers and Composites. Philadelphia, PA (1982).

[27] ASTM: C365/C 364M-05, Standard Test Method for End Compressive Properties of Sandwich Cores, West Conshohocken,PA, 2006.

[28] N. Regnier, B. Mortaigne, Polym. Degrad. Stabil. 49 (1995)419-428.

[29] E. Oussama, G. Elhem, M. Valérie, B.O. Mongi, Constr. Build.Mater. 27 (2012) 415-424.

[30] S.H. Cao, Z.S. Wu, X. Wang, J. Compos. Mater. 43 (2009)315-330.

[31] T.K. Tsotsis, J. Compos. Mater. 29 (1995) 410-422.