Question $1$

The tab shown is oriented such that point $\backslash ($ A $\backslash )$ is aligned with the edge of the thick fixed plate, and the tab is angled at $\backslash (\backslash$theta$=21^\{\backslash$circ$\}\backslash ).$ The applied force $\backslash ($ F $\backslash )$ will fluctuate repeatedly between $5$ kip and $-2$ kip $,$ and will be directed along a line coincident with the centerline of the tab. The tab is composed of $1045$ HR steel, and the thick fixed plate is composed of $1015$ CD steel tsee table A$-20).$ The tab is welded to the plate using an E$60$xx electrode. Using a size factor of $1,$ the Gerber criterion, and a conservative approach regarding the strength of the resulting weld material...

A$.$ find the factor of safety for $\backslash (99\backslash \%\backslash )$ reliability against fatigue failure.

B$.$ recommend a different weld size that results in a factor of safety of $1\mathrm{.}2$ for $\backslash (99\backslash \%\backslash )$ reliability against fatigue failure.