Abstract
The higher order composite beam theory (HOCBT) established in Part-I is a refinement of the one-dimensional beam-like theory related to 3D Saint-Venant s solution HOCBT is based on a displacement model including in/out-of plane warpings and is devoted to symmetric and orthotropic composite beams
In the present Part-II, HOCBT is applied to analyze the built-in effects influence on the structural behavior of end-loaded cantilever beams (torsion tension and shear-bending) In the critical region close to the built-In section, the 3D (axial and shear) stresses calculated by the proposed theory are relevant and quite comparable to those obtained by 3D-FEM computations These results obtained for a representative set of cross-sections, show that HOCBT is able to describe the built-in effects and hence their influence on the structural behavior of the beam
As expected moving from the built-in section the results (displacements and stresses) tend towards Saint-Venant's solution in the interior part of the beam It is shown that the extents of the built-in effects are related to dimensionless constants that take into account the whole nature of the composite section and the loading case Practically regarding to Saint-Venant results these constants allow to predict the built-in effects expansion (C) 2010 Elsevier Ltd All rights reserved