Comparative analysis between three methods for calculating the stability of compressed bars

e393

Abstract

A structural element must not only satisfy specific strength and rigidity requirements, but it must also be stable. To calculate the stability of compressed bars, it must be defined which method to use based on the cross section of the column, material, how it is fixed, and length. In the present investigation, the objective is to compare the methods of Yasinski and J. B. Johnson and the Finite Element Method (FEM) for the calculation of this type of elements. To do this, three types of bars were considered, each with three variants. Once the results were obtained, they showed that there is not a great difference between the Yasinski and Johnson methods. The latter is the most conservative and secure of the three, while the MEF is the least conservative.