This paper investigates the effect of fiber waviness on the behavior of carbon-epoxy composites. A theoretical elastic model is developed to predict lamina modulus of elasticity as a function of fiber waviness and is used in an incremental loading scheme to predict the general stress-strain response. This theoretical response is found to be nonlinear in the same fashion as the experimental, measured response.
Get full access to this article
View all access options for this article.
References
1.
Swanson, S.1990. "A Model for Compression Failure in Fiber Composite Laminates ," 111th ASME Winter Annual Meeting, AMD, 113:81-85.
2.
Gwynn, G.E., W.L. Bradley and O.D. Ochoa.1990. "Experimental Observations and Finite Element Analysis of the Initiation of Fiber Microbuckling in Notched Composite Laminates," NASA Research Grant NAG-1-659, NASA Langley Research Center, Mechanics and Materials Branch, Hampton, VA.
3.
Lebedev, N.N.1972. Special Functions and Their Applications, New York: Dover Publications Inc.
4.
Burden, L.R., J.D. Faires and A.C. Reynolds.1981. Numerical Analysis, The Southeast Book Co.
5.
Whitney, J.M., I.M. Daniel and R.B. Pipes.1984. Experimental Mechanics of Fiber Reinforced Composite Materials, The Society of Experimental Composites .
6.
Mase, A. and M.R. Pigott.1990. "Relation between Fiber Divagation and Compressive Properties of Fiber Composites," 35th International SAMPE Symposium, pp. 2236-2244.