Experimental Measurement of Maximum Bending Stress on Rectangular Aluminum Beam

Abstract

In this study, maximum bending stresses occurring on the rectangular aluminum beam under various small loads were measured with strain gauge, data acquisition cards and computer. Special software was developed to measure maximum strain and stress on the aluminum beam. Stress values occurring on the aluminum beam under various small loads were measured with strain gauge and those strain values were transmitted to computer directly with data cards. Using the strain, the load and other constant values of the material (Young’s modulus, dimensions, cross section area, load, Poisson’s rate, etc.), the stress values occurring on the beam are calculated and the stress-strain graph is drawn on the screen automatically. In this experimental study, the theoretical knowledge given in the books and experiment results obtained under laboratory conditions were compared with each other. The obtained results were almost 99% similar. Similar studies have characteristics that can be used to measure maximum bending and torsion stresses for real applications in the industry and mobile loading machines.