Antisymmetric Angle-Ply Laminated Plates

Antisymmetric angle-ply laminates were described in Section 4.3.3 and found to have extensional stiffnesses A i,A.,2, A22, and Agg bending-extension coupling stiffnesses B. g and 625 and bending stiffnesses D.. , D. 2, D22. and Dgg. Thus, this laminate exhibits a different type of bending-extension coupling than does the antisymmetric cross-ply laminate. The coupled governing differential equations of equilibrium are 

Whitney solved the problem for simply supported edge boundary condition S3 [5-13 and 5-14] (recall that S2 was used for antisymmetric cross-ply laminated plates in Section 5.3.3)  

Maximum deflection results for a graphite-epoxy laminate for which 

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Figure 5-16 Deflection of a Square Antisymmetric Angle-Ply Laminated Plate under Sinusoidal Transverse Load...

Figure 5-28 Buckling of Square Antisymmetric Angle-Ply Laminated Plates under Uniform Uniaxial Compression,...

The buckling load will be determined for plates with various laminations specially orthotropic, symmetric angle-ply, antisymmetric cross-ply, and antisymmetric angle-ply. The results for the different lamination types will be compared to find the influence of bend-twist coupling and bending-extension coupling. As with the deflection problems in Section 5.3, different simply supported edge boundary conditions will be used in the several problems addressed for convenience of illustration. 

Robert M. Jones, Harold S. Morgan, and James M. Whitney, Buckling and Vibration of Antisymmetrically Laminated Angle-Ply Rectangular Plates, Journal of Applied Mechanics, December 1973, pp. 1143-1144. 

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