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Required information

Problem $06\mathrm{.}031-$ A connecting$-$link portion having stress concentration at three sections

The figure shows the free$-$body diagram of a connecting$-$link portion having stress concentration at three sections. The dimensions are $r=0\mathrm{.}25in,d=0\mathrm{.}40in,h=0\mathrm{.}50in,w_1=2\mathrm{.}5in,w_2=1\mathrm{.}5in,$ and the force fluctuates between a tension of $14$ kips and a compression of $3\mathrm{.}500$ kips. Use the modified Goodman criteria. Neglect column action. The material used is cold$-$drawn AISI $1018$ steel.

Problem $06\mathrm{.}031.$a $-$ Determine the endurance limit

Determine the endurance limit $S_e$ for this material as well as the value after correction for surface finish, sizing, and loading.

The endurance limit for the material is

kpsi.

The endurance limit for the material after correction for surface finish, sizing, and loading is

$\backslash$times kpsi.