Consider the plate shown in $($Figure $1).$

Figure$1$ of $1$

A horizontal plate of thickness of $0\mathrm{.}5$ inches is subjected to an axial force P acting horizontally out from the centers of its left and right ends. The plate has a left section with a height of $3$ inches. The plate's right section has a height of $4\mathrm{.}5$ inches with a hole of diameter $0\mathrm{.}54$ inches through the centers of its near and far faces, and the curved surfaces that transition between the sections' top and bottom sides have radii of curvature of $0\mathrm{.}45$ inches each.

Part A

Determine the maximum axial force P

that can be applied to the plate. The allowable stress is $\backslash$sigma allow

$=51$ ksi

$.$

Express your answer to three significant figures and include the appropriate units.