This paper extends the nonlinear behavior of unidirectional laminae of Reference [1] to that of laminated composites. A comparison between the theory and experimental results is shown through the analysis of uniaxial tension behavior of various laminates. The effect on buckling stress owing to nonlinearity is illustrated for a ±45° angle-ply laminate with simply- supported edges.
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References
1.
Hong T.Hahn and Stephen W. Tsai, "Nonlinear Elastic Behavior of Unidirectional Composite Laminae,"J. Comp. Mat., Vol. 7 (1973), p. 102.
2.
P.H. Petit and M.E. Waddoups, "A Method of Predicting the Nonlinear Behavior of Laminated Composites,"J. Comp. Mat., Vol. 3 (1969), p. 2.
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S.G. Lekhnitskii, Anisotropic Plates, (English Trans, Gordon and Breach (1968), ch. 14.
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B.W. Rosen, "A Simple Procedure for Experimental Determination of the Longitudinal Shear Modulus of Unidirectional Composites,"J. Comp. Mat. , Vol. 6 (1972), p. 552.
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D.F. Sims, "In-Plane Shear Stress-Strain Response of Unidirectional Composite Materials,"J. Comp. Mat. , Vol. 7 (1973), p. 124.
