Cross Section Analysis of a Composite Box Beam

Abstract

Cross-sectional analysis of a composite box-beam is performed by an analytical method and a variational-asymptotical method.

The beam stiffness coefficients are obtained and compared for both analytical and variational-asymptotical methods. The parameters of box­ beam width and height, wall thicknesses, initial twist and composite orientation angle are selected for the sensitivity of box -beam stiffnesses.

The sensitivity results give the most important parameters affecting the stiffnesses of the box-beam.