Fiber beam-column element implementation in academic CAD software Matrix 3D

Abstract

Theoretical foundations of beam -column finite element implemented (and tested) within academic CAD software developed on FTN (Department of civil engineering) are presented in this paper. Aforementioned FE is force-based fibre element, divided into a discrete number of monitored sections. Besides of material nonlinearity, finite-element is capable of capturing geometrical nonlinearity. Some of numerical issues needed for performing incremental-iterative solution procedures with those elements are addressed in the paper. Finally, results and comparison with available data are shown.

Keywords

• fibre element
• beam-column
• academic software
• nonlinear analysis