Abstract
A simple procedure was established to fabricate polyurethane-cenosphere particulate composite materials. Composites having four different volume fractions of cenospheres (hollow ceramic microspheres) ranging from 10 to 40% in increments of 10% were prepared and their mechanical properties were evaluated. A predictive model to estimate the fracture toughness of the composite was developed. The dynamic constitutive behavior of the composite in compression was investigated using the split Hopkinson pressure bar (SHPB) technique in conjunction with high-speed photography. The results of the material characterization indicated that addition of cenospheres decreased the density of the composite. The quasi-static stiffness, both in tension and compression, and the quasi-static fracture toughness of the composite increased with addition of cenospheres. The high strain rate constitutive behavior of 100% polyurethane showed monotonic stiffening whereas the composite at higher cenosphere volume fractions (40%) exhibited a stiffening-softening-stiffening behavior. Scanning Electron Microscopy (SEM) studies were also carried out to determine the failure mechanisms of the composite.
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References
U. Yilmazer and R. J. Farris, J. Appl. Polym. Sci. 28 (1983) 3369.
K. Chehab and C. L. Beatty, in Proceedings of the ACS Division of Polymeric Materials (Div. of Polymeric Materials: Science & Engineering, Washington, DC, USA 1987) Vol. 56, p. 449.
H. D. Rozman, G. S. Tay, A. Abubakar and R. N. Kumar, Eur. Polym. J. 37 (2001) 1759.
A. M. Torro-Palau, J. C. Fernandez-Garcia, A. C. Orgiles-Barcelo and J. M. Martin-Martinez, Int. J. Adhes. Adhes. 21 (2001) 1.
SZ. Molnar, B. Pukanszky, C. O. Hammer and F. H. J. Maurer, Polymer 41 (2000) 1529.
R. J. Cardoso, A. Shukla and A. Bose, J. Mater. Sci. 37 (2002) 603.
R. P. Singh, M. Zhang and D. Chan, ibid. 37 (2002) 781.
A. Sharma, A. Shukla and R. A. Prosser, ibid. 37 (2002) 1005.
W. Chen, F. Lu, D. J. Frew and M. J. Forrestal, Trans ASME 69 (2002) 214.
T. Wandell, Amer. Ceram. Soc. Bull. 75(6) (1996) 79.
S. Pervez, G. S. Pandey and V. K. Jain, Res. Ind. 38 (1993) 99.
R. M. Clayton and L. H. Back, J. Eng. Gas Turbines Power Trans ASME 111 (1989) 679.
E. Guth, J. Appl. Phys. 16 (1945) 20.
J. S. BergstrÖm and M. C. Boyce, Rubber Chem. Technol. 72 (1999) 633.
M. A. El-Hadek and H. V. Tippur, J. Mater. Sci. 37 (2002) 1649.
P. K. Rohatgi and R. Q. Guo, in Proceeding of the 59th Annual American Power Conference, 1997 (Illinois Inst of Technology, Chicago, IL, USA) p. 828.
T. L. Anderson, “Fracture Mechanics” (CRS Press, Washington D.C., 1995) p.61.
H. Kolsky, Proc. R. Soc. Lond. B 62 (1949) 676.
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Chalivendra, V.B., Shukla, A., Bose, A. et al. Processing and mechanical characterization of lightweight polyurethane composites. Journal of Materials Science 38, 1631–1643 (2003). https://doi.org/10.1023/A:1023203121299
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DOI: https://doi.org/10.1023/A:1023203121299