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Strength prediction of partially aligned discontinuous fiber-reinforced composites

Published online by Cambridge University Press:  31 January 2011

Rex J. Kuriger ,
M. Khairul Alam  and
David P. Anderson
Rex J. Kuriger
Affiliation:
Department of Mechanical Engineering, 251 Stocker Center, Ohio University, Athens, Ohio 45701
M. Khairul Alam
Affiliation:
Department of Mechanical Engineering, 251 Stocker Center, Ohio University, Athens, Ohio 45701
David P. Anderson
Affiliation:
University of Dayton Research Institute, 300 College Park, Dayton, Ohio 45469
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Abstract

An experimental and theoretical approach has been described for the determination of the strength of partially aligned discontinuous fiber-reinforced composites. The fiber alignment information was obtained as a Gaussian or normal distribution function by using an x-ray-diffraction technique. The distribution function was then used in the composite strength equation to calculate the theoretical strength. This approach was applied to a composite of vapor grown carbon fiber (VGCF) in a polypropylene matrix, and the experimental and theoretical results were compared. As expected, the composite strength increased with increase in fiber volume fraction and the degree of fiber alignment. It was also observed that the composite strength was sensitive to variation in fiber length when the average fiber length was less than the critical fiber length. At higher fiber volume fractions the composite strength was much lower than predicted by theory. This is most likely due to incomplete wetting and infiltration of the VGCF.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 1 , January 2001 , pp. 226 - 232
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Kuriger, R.J. and Alam, M.K., Polymer Composite Fabrication with Discontinuous Carbon Nano-Fibers, Proceedings (electronically published by ASME as a CD) of the 34th National Heat Transfer Conference, Pittsburgh, PA (2000).Google Scholar
2.Tibbetts, G.G., Gorkiewicz, D.W., and Hammond, D.C. Jr., U.S. Patent No. 5,024,818 (1991).Google Scholar
3.Glasgow, J., Applied Sciences, Inc., Cedarville, OH (personal communication).Google Scholar
4.Baxter, W.J., Metall. Trans. A, 23A, 3045 (1992).CrossRefGoogle Scholar
5.Lees, J.K., Polym. Eng. Sci. 8, 195 (1968).CrossRefGoogle Scholar
6.Azzi, V.D. and Tsai, S.W., Proceedings of the Society for Experimental Stress Analysis 22, 283 (1965).Google Scholar
7.Tsai, S.W., Fundamental Aspects of Fiber Reinforced Plastic Composites, edited by Schwartz, R.T. and Schwartz, H.S. (Wiley Interscience, New York, 1968), pp. 3–11.Google Scholar
8.Kelly, A. and Tyson, W.R., J. Mech. Phys. Solids 13, 329 (1965).CrossRefGoogle Scholar
9.Prewo, K.M. and Kreider, K.G., Metall. Trans. 3, 2201 (1972).CrossRefGoogle Scholar
10.Chen, P.E., Polym. Eng. Sci. 11, 51 (1971).CrossRefGoogle Scholar
11.Roe, R-J. and Krigbaum, W.R., J. Chem. Phys. 40, 2608 (1964).CrossRefGoogle Scholar
12.Alexander, L.E., X-Ray Diffraction Methods in Polymer Science (Wiley-Interscience, New York, 1969), Ch. 4.Google Scholar
13.Ruland, W., Chemistry and Physics of Carbon: A Series of Advances, edited by Philip Walker, L. Jr. (Marcel Dekker, New York, 4, 1968), Vol. 4, p. 1–84.Google Scholar
14.ASI Homepage, http://www.apsci.com/pub1.html (1999).Google Scholar
15.Tibbetts, G.G., General Motors Research and Development Center, Warren, MI (personal communication).Google Scholar
16.Tibbetts, G.G. and McHugh, J.J., J. Mater. Res. 14, 2871 (1999).CrossRefGoogle Scholar
17.Kuriger, R.J. and Alam, M.K., The Influence of Extrusion Conditions on Properties of Vapor Grown Carbon Fiber Reinforced Polypropylene, Polym. Composites (2000).CrossRefGoogle Scholar