论文信息 - Optimization for buckling of composite sandwich plates

Optimization for buckling of composite sandwich plates

Consider a composite sandwich plate with balanced or unbalanced anisotropic composite laminated faces and an ideally orthotropic core. A closed-form solution of the buckling load is derived for the composite sandwich plates consisting of cross-ply symmetric laminate faces with all edges simply supported. In addition, a general scheme is developed for the composite sandwich plates with arbitrary sandwich layups, boundary, and loading conditions. By combining the present buckling analysis with Powell's conjugate direction method, an optimal algorithm is established to find the optimal sandwich layup in resisting biaxial compression, as well as in-plane shear loads.

C. Hwu | J. Moh

[1] S. Adali,et al. Lay-up optimization of laminated plates under buckling loads , 1995 .

[2] C. Hwu,et al. Buckling and postbuckling of delaminated composite sandwich beams , 1992 .

[3] C. Hong,et al. Buckling of unbalanced anisotropic sandwich plates with finite bonding stiffness , 1988 .

[4] Aleksander Muc,et al. Optimal fibre orientation for simply-supported, angle-ply plates under biaxial compression , 1988 .

[5] C. Bert,et al. The behavior of structures composed of composite materials , 1986 .

[6] K. Rao,et al. Buckling analysis of anisotropic sandwich plates faced with fiber-reinforced plastics , 1985 .

[7] J. Webber,et al. Buckling of Sandwich Panels with Laminated Face Plates , 1972 .

[8] M. J. D. Powell,et al. A Method for Minimizing a Sum of Squares of Non-Linear Functions Without Calculating Derivatives , 1965, Comput. J..

[9] M. J. D. Powell,et al. An efficient method for finding the minimum of a function of several variables without calculating derivatives , 1964, Comput. J..

[10] J. Robinson. The Buckling and Bending of Orthotopic Sandwich Panels With All Edges Simply-Supported , 1955 .