$5-36$ this problem illustrates that the factor of safety for a mchine element depends on the particular point selected for analysis. here you are to compute factors of safety, based upon the distortion energy theory, for stress elements at A and B of the member shown in the figure. This bar is made of AISI $1006$ cold$-$drawn steel and is loaded by a cyclic load. the steady forces are given by F$=0\mathrm{.}55$ kN and T$=25$Nm and the cyclic axial load P runs from $4\mathrm{.}0$ kN to $-4\mathrm{.}0$ kN$.$ Find the factors of safety for the cases: a$)$ infinite life b$)$ high$-$cycle application c$)$ low$-$cycle application