Nonlinear analysis of thin-walled beams with highly deformable sections

Geometrically Nonlinear Theory of Composite Beams with Deformable Cross Sections

Aone-dimensional theory of slender structures with heterogeneous anisotropic material distribution is presented. It expands Cosserat’s description of beam kinematics by allowing deformation of the beam cross sections. For that purpose, a Ritz approximation is introduced on the cross-sectional displacement field, which defines additional elastic degrees of freedom (finite-sectionmodes) in the on...

Analysis of Thin-Walled Steel Sections Filled with Concrete Using Non-Linear Finite Element Method

Being economical and performing well under cyclic loads, steel sections filled with concrete have been widely used in structural buildings. Extensive studies and experiments have been conducted to investigate the influence of different parameters and loadings on the behavior of these structural components. Based on the data available from previous experiments and studies, this paper discusses t...

Analysis of Thin-Walled Steel Sections Filled with Concrete Using Non-Linear Finite Element Method

Being economical and performing well under cyclic loads, steel sections filled with concrete have been widely used in structural buildings. Extensive studies and experiments have been conducted to investigate the influence of different parameters and loadings on the behavior of these structural components. Based on the data available from previous experiments and studies, this paper discusses t...

An improved model for naturally curved and twisted composite beams with closed thin-walled sections

This paper presents an improved model for naturally curved and twisted anisotropic beams with closed thin-walled cross-sections. By introducing eigenwarping functions and expanding axial displacements in series of eigenwarpings, the differential equation involving the generalized warping coordinate and the expression for eigenvalues can be derived using the principle of minimum potential energy...

Notes on the Linear Analysis of Thin-walled Beams