Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 4 7 2016 12 17 Use of FEM in Identification of Stress in Place of Concentration Factor 454 459 EN Ingrid Delyová Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering Technical University of Košice, Slovakia Darina Hroncová Peter Sivák AJME20164741 10.12691/ajme-4-7-41 2016 9 8 2016 11 26 2016 12 15 Stress concentrators are sudden changes of shape of mechanic part, which evoke changes of force flow, so they influence tensions, which load this part. The same goes for the static or the cyclic loading. The notches which are on the surfaces of various components increase the stress. Such kind of stress creates instability and weakening of the component. However, it is possible to reduce that influence by adding such notches which are spaced apart in some distance.