Investigation of Variation in Stress Concentration Factor with the Change in Orientation of Central Hole on a Rectangular Plate

The purpose of this study is to analyze the variation in stress concentration factor with the change in orientation of a central hole on a rectangular plate of specified dimensions, subject to uniaxial loading. The study is carried out using finite element analysis under static structural module on ANSYS software (version 14.5). To distillate effects of stress concentration, flat plates of structural steel having hole orientation at 30°, 45°, and 90o from longitudinal axis were used, and the uniaxial load is varied from 5000 to 20,000 N. After complete investigation of the flat structural steel plates on the software, results show that the value of stress concentration factor reduces by 17.2%, whereas the total deformation increases by 0.46% at 45° in comparison with the plate having vertical hole. All the values of stress concentration factors were analyzed, and it is found that it increases by 8.17% from 30° to 90° variation of hole inclination.