By means of Hamilton variational principle, a nonlinear flexural wave equation for beams taking account of the geometric nonlinearity caused by the large deflection and the dispersive effect of rotational inertia in the beams is derived in this paper.

By combining the microplane model with the finite element method,the nonlinear bending of concrete slabs is solved and the numerical results obtained in this paper are in good agreement with the experimental results.

First, the nonlinear relationships between the strain of surface layer and the displacement of neutral plane are established and, according to the nonlinear bending basic equations, basic equations of threedimensional frame in orthogonal coordinates system are obtained, too.

A nonlinear bending analysis of a cantilevered moderately thick rectangular plate subjected to a transverse uniform pressure or a concentrated load was presented.

In this paper, a numerical solution technique, which is based on the pb-2 Ritz method is presented for the investigation of the geometric nonlinear bending of quadrangular thin plates.

The nonlinear static bending of moderate thickness rectangular plate with four free edges on a nonlinear elastic foundation is researched.