Geometrically Nonlinear Analysis of Cross-Ply Composite Beams under Transverse Loading
The flexural analysis of fiber reinforced composite beams based on a higher-order shear deformation theory is investigated. The geometric nonlinearity is incorporated in the formulation by considering the von Karman strains. The finite element method is used to solve the nonlinear governing equations by direct iteration. Numerical results are presented for symmetrically and unsymmetrically laminated cross-ply beams for various boundary conditions. Compared to the first-order shear deformation theory, the present theory predicts the deflections more accurately, eliminates the need for reduced integration of the shear stiffness terms and does not require shear correction factors.
K. Chandrashekhara and K. M. Bangera, "Geometrically Nonlinear Analysis of Cross-Ply Composite Beams under Transverse Loading," Proceedings of the 14th Annual Energy-Sources Technology Conference and Exhibition, American Society of Mechanical Engineers (ASME), Petroleum Division, Jan 1991.
Mechanical and Aerospace Engineering
Keywords and Phrases
Cantilever Beams; Fiber Composites; Gaussian Elimination; Ply Orientation; Shear Strain; Transverse Laods; Bending Moments; Graphite-Epoxy Composites; Iterative Solution; Timoshenko Beams
Article - Conference proceedings
© 1991 American Society of Mechanical Engineers (ASME), Petroleum Division, All rights reserved.