Impact Compressive Failure of a Unidirectional Carbon/Epoxy Laminated Composite in Three Principal Material Directions

Abstract:

The impact compressive failure behavior of a unidirectional T700/2521 carbon/epoxy laminated composite in three principal material directions or fiber (1-), in-plane transverse (2-) and through-thickness (3-) directions is investigated on the conventional split Hopkinson pressure bar (SHPB). Cubic and rectangular block specimens with identical square cross section are machined from an about 10 mm thick composite laminate. The uniaxial compressive stress-strain curves up to failure at quasi-static and intermediate strain rates are measured on an Instron testing machine. It is shown that the ultimate compressive strength and strain exhibit no strain-rate effect in the 1-direction, but a slight strain-rate effect in the 2-and 3-direction over a range of strain rates from10^-3 to 10³/s.

• Periodical: Materials Science Forum (Volumes 706-709)
• Pages: 799-804
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.706-709.799
• Online since: January 2012
• Authors: Takashi Yokoyama
• Keywords: Block Specimen, Compressive Failure, Failure Mode, Principal Material Direction, Split Hopkinson Bar, Strain Rate, Unidirectional Composite

References

[1] ASTM D3410-87: ASTM Standards and Literature References for Composite Materials, 2nd Ed. (ASTM, 1990) p.38.

[2] H. Kolsky: Proc. Phys. Soc., B62 (1949), 676-700.

[3] R.L. Sierakowski: Applied Mechanics Review, 50-12, Part 1 (1997), 741-761.

[4] A.M.S. Hamouda and M.S.J. Hashmi: J. Mat. Process. Technol., 77 (1998), 327-336.

[5] Z. Li and J. Lambros: Compos. Sci. Technol., 59 (1999), 1097-1107.

[6] M.V. Hosur, J. Alexander, U.K. Vaidya and S. Jeelani: Compos. Struct., 52 (2001), 405-417.

[7] ASTM E9-89a: Annual Book of ASTM Standards, Vol. 03. 01 (ASTM, 1995) p.98.

[8] C. Zhang, S.V. Hoa and R. Ganesan: J. Compos. Mater., 36 (2002), 1615-1652.

[9] T. Yokoyama and K. Nakai: Applied Mechanics and Materials, 3/4 (2005), 191-196.

[10] ASTM D695-89: ibid., (ASTM, 1990) p.276.

[11] J. Lankford: Advanced Composite Materials, 19 (1991), 553-563.

[12] J. Yuan, N. Takeda and A.M. Waas: Sci. Engng Compos. Mater., 9 (2000), 1-9.

[13] T. Yokoyama: Applied Mechanics and Materials, 1/2 (2004), 11-16.

[14] U.S. Lindholm: J. Mech. Phys. Solids, 12 (1964), 317-335.

[15] J.G. Häberle and F.L. Matthews: J. Compos. Mater., 28 (1994), 1618-1639.

[16] C.T. Sun and A.W. Jun: Compos. Sci. Technol., 52 (1994), 577-587.

[17] T.E. Tay, H.G. Ang and V.P.W. Shim: Compos. Struct., 33 (1995), 201-210.