OBJECT-ORIENTED GRAPHICAL INTERFACE FOR COMPUTATIONAL TOOL OF TWO-DIMENSIONAL ELASTIC-LINEAR ANALYSIS OF BARS WITH STRAIGHT AND CURVED AXIS

Resumo

This paper describes the details of a graphical interface for a linear-elastic analysis program
based on the finite element method with two-dimensional straight and curved bars elements, without
considering the shear deformations (Navier beams theory). The software adds curved-axis elements,
such as circular arcs, to the linear analysis of bars based structures (beams, frames) as a way to assist

the teaching and learning in the structural environment. The interface was developed in Java, object-
oriented paradigm and associated with the program already developed in FORTRAN. The system

generates the preprocessing of the analysis. Preprocessing includes data entry with constitutive and
geometric properties, graphical arrangement of nodes and elements, boundary conditions and loads.
This graphical interface is part of a research project aiming to develop a software for analysis of
frames with both straight and curved bars, as well as bars with variable inertia.