Stress Analysis of a Rectangular Plate with Circular Hole Using Three Dimensional Finite Element Model

1 Undergraduate Student, Department of Mechanical Engineering, DAVIET, Jalandhar, Punjab, India 2 Incharge, Mechanical Engineering Department, Mehr Chand Polytechnic, Jalandhar, Punjab, India _________________________________________________________________________ Abstract: Geometric irregularities such as holes, notches, keyways, shoulders provided on shafts etc. are common features provided in machine members. But such irregularities often lead to stress concentration near the irregularity due to which the stress near the irregularity is higher than the average stress in the whole member. In this study, a rectangular plate with circular hole at center is analyzed by using three dimensional finite element analysis. The plate is subjected to tensile loading and the effect of ratio of thickness of plate to hole diameter ie. T/D on the stresses and displacements is studied. Further, the stress concentration factor for different T/D ratios is calculated theoretically and is compared with stress concentration factor computed by using ANSYS.