Postbuckling analysis of stiffened laminated panel. (English) Zbl 0683.73023

Sheinman, Izhak; Frostig, Yeoshua

J. Appl. Mech. 55, No. 3, 635-640 (1988).

Summary: An analytical-numerical procedure is applied to investigate the post- buckling behavior of a composite laminated stiffened panel. The panel is modeled by plate elements for which the nonlinear equations are derived (via a variational principle) in terms of the lateral displacement and Airy stress function, and treated by resolving the variables into eigenfunctions in conjunction with a finite-difference scheme.

MSC:

74G60	Bifurcation and buckling
74S30	Other numerical methods in solid mechanics (MSC2010)
74E30	Composite and mixture properties
74K20	Plates

Keywords:

nonlinear partial differential equations; Galerkin analysis; minimum error in truncation process; Newton’s method; nonlinear set converted into linear sequence; analytical-numerical procedure; variational principle; Airy stress function; resolving the variables into eigenfunctions; finite-difference scheme