Analysis of stress concentration factors of intermittent connections under length change of boundary elements

Abstract

The investigation of stress concentration factor in the intermittent connections depending on the grid of finite elements method and boundary elements spacing in the parts of their break is carried out. The results of calculation operations by methods of finite and boundary elements in comparison with the studies of other authors are in the basis of the analysis. The difference between calculation results by method of finite elements and method of boundary elements is 1.5%–6.0%. The accurate calculation results were obtained, when the finite elements spacing was no more then 1/200 of intermittent part of the plate.