4th International Conference on Engineering and Natural Science, Kyyiv, Ukraine, 2 - 06 May 2018, pp.484-492
Notches are the stress raiser regions. Along the notch section, not only the stress distrubiton becomes nonuniform, but also the stress level reaches the maximum value. These geometrical disorders can be
undesirable such as casting cavity but sometimes these disorders are created deliberately for assembly
process such as keyway holes or shaft steps. Because of the necessity of these notchs, This is important to
understand material behavior along this region.
In this study, three different strain paths were created by the cyclic tensile and torsial loadings and strains
of the notch root of a shaft which has circumferentially notch were investigated through the finite element
method (FEM). MSC. Marc commercial program have been used in this study as finite element analysis
software. The results have been obtained for kinematic hardening rules and compared with the
experimental results obtained by Barkey. Also in this study, a subroutine file were used to calculate the
Chaboche kinematic hardening parameters according to Ludwig equation.