Preparation and Characterization of Structural Damping Composites Toughened by Polyamide Nonwoven Fabrics

Article Preview

Abstract:

A new kind of structural damping composites was prepared by interleaving polyamide nonwoven fabrics (PNF) between the carbon fiber reinforced epoxy composite laminates. The damping behaviors of the composites made were experimentally investigated using cantilever beam test and dynamic mechanical analysis. The damping ratios of the nonwoven fabrics interleaved composites were compared with the ones of non-interleaved composites. In addition, the interlaminar shear strength and flexible modulus of the composites were also investigated, as well as the composite compression after impact (CAI), Mode I and Mode II interlaminar fracture toughness (GIC and GIIC), in order to evaluate the influence of the polyamide nonwoven fabric layers on the composite mechanical properties. It has been observed that the interleaved polyamide nonwoven fabric layers greatly improved the composite damping loss factors, and the composites containing 7 layers of PNF showed the best damping behavior. Meanwhile, the addition of PNF showed a negligible influence on the composite flexible strength and modulus and interlaminar shear strength. Most importantly, the CAI, GIC and GIIC tests indicated that the composite interlaminar toughness and impact resistance were significantly improved by the interleaved PNF. Finally, the reinforcing mechanism of this kind of composites is discussed.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

189-195

Citation:

Online since:

March 2016

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2016 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Y.F. ZHAO, S.X. YOU. Review on the Structure/Damping Co-cured Composite Materials and Their Applications. Material Engineering , 2012, 11 86-91.

Google Scholar

[2] L.J. PAN,B.M. ZHANG ,F.H. DAI. Damping properties of cocured composites with interleaved viscoelastic damping layers at different temperatures. Acta Materiae Compositae Sinica, 2008,25(1) 168-172.

Google Scholar

[3] A. L. Araújo, P. Martins, C. M. MotaSoares, C. A. MotaSoares, J. Herskovits. Damping optimization of viscoelastic laminated sandwich composite structures. Struct Multidisc Optim, 2009, 39: 569–579.

DOI: 10.1007/s00158-009-0390-4

Google Scholar

[4] J.M. YANG, Y.C. ZHANG,L.J. WU. Damping Optimization of Composite Structures with Multi-interleaved Viscoelastic Layers. Acta Aeronautica Et Astronautica Sinica, 2011,2 265-269.

Google Scholar

[5] JASROBIN S G, RAMIN S, EBRAHIM E. Vibration analysis and design optimization of sandwich beams with constrained viscoelastic core layer. Journal of Sandwich Structures and Materials 15(2) 203-228.

DOI: 10.1177/1099636213476510

Google Scholar

[6] K.L. Napolitano, W. Grippe, J.B. Kosmatka, et al . A comparison of two co-cured damped composite torsion shafts. Composite Structures 43 (1998) 115-125.

DOI: 10.1016/s0263-8223(98)00091-9

Google Scholar

[7] M.J. LI,G.W. LIU,Y.W. XU et al. Influences of bonding layer on the internal friction characteristics of anisotropic laminated damped structures. Acta Materiae Compositae Sinica, 2005,22(4):96-99.

Google Scholar

[8] M.J. JIN, Y.T. ZHAO, Q.X. DAI et al. Study on fabrication and properties of Al foams/PC Resin/Al alloy laminated composites. Journal of Materials Science and Engineering , 2005, 23(4) 585-588.

Google Scholar

[9] D. J. Barrett. Damped Composite Structures. Composite Structure. 1991, 18 283-294.

Google Scholar

[10] M. J. Robinson, J. B. Kosmatka. Embedding Viscoelastic Damping Materials in Low-Cost VARTM Composite Structures. Proc. of SPIE. 2005, 5760 349~360.

DOI: 10.1117/12.600421

Google Scholar

[11] R. S. L AKES. R. S. LAKES. High Damping Composite Materials: Effect of Structural Hierarchy. Journal of Composite Materials, 2002, 36, 3 273-296.

DOI: 10.1177/0021998302036003538

Google Scholar

[12] L.J. Pan, B.M. Zhang, F.H. Dai. Multi-objective Optimization of Co-cured Composite Laminates with Embedded Viscoelastic Damping Layer. Journal of Materials Science & Technology. 2009, 25(5) 708-712.

Google Scholar

[13] Toshio TANIMOTO. Smart CFRP Materials for Application in Low-vibration Structures[C]. The International Conference on Composite Interfaces, Tokyo, Japan, 2012, Interface 21: 1-4.

Google Scholar

[14] X. WANG, H.X. LIU, S.X. OUYANG. Damping properties of flexible epoxy resin . Journal of Wu Han University of Technology-Mater. Sci. Ed. 2008,23(3) 411-414.

DOI: 10.1007/s11595-007-3411-4

Google Scholar

[15] James Sargianis, JonghwanSuhr. Core material effect on wave number and vibrational damping characteristics in carbon fiber sandwich composites. Composites Science and Technology 72 (2012) 1493–1499.

DOI: 10.1016/j.compscitech.2012.06.024

Google Scholar