The bracket $BCD$ is loaded as illustrated. $[$a$]$ The control rod $AB$ is made of steel with an ultimate normal stress of $600$MPa. Determine the diameter of the rod for which the F$.$S$.$ with respect to failure will be $3\mathrm{.}3.[$b$]$ The pin at $C$ is to be made of steel having an ultimate shearing stress of $350$MPa. Determine the pin diameter C for which the F$.$S$.$ with respect to shear will also be $3\mathrm{.}3.[$c$]$ Determine the required thickness of the bracket supports at $C,$ knowing that

the allowable bearing stress of the steel used is $300$MPa. Round each dimension to the nearest $mm.$

Solution: $[$a$]d_{AB}=16\mathrm{.}74mm,,17mm$

$[$b$]d{c}_c=21\mathrm{.}4mm,,22mm$

$[$c$]t=5\mathrm{.}78mm6mm$