Problem $04\mathrm{.}127-$ Determine the minlmum IInk thlckness needed to meet buckling criterla

The link shown in the figure is $40$ mm wide and is cut from a low$-$carbon steel bar stock having a minimum yield strength of $165$ MPa $.$ A force of $P=600N$ is applied at point $C.$ The end$-$condition constants are $C=1$ and $C=1\mathrm{.}2$ for buckling in and out of the plane of the drawing, respectively. Using a design factor $n_d=2\mathrm{.}500.$ find a suitable thickness for the link. $($Round the final answer to three decimal places.$)$

The suitable thickness for the link is mm$.$