Problem $08\mathrm{.}020$ Determine the largest shear stress in a stepped shaft under load.

Knowing that rods AB and BD are of diameters $1\mathrm{.}25$ in$.$ and $1\mathrm{.}75$ in$.,$ respectively, determine the maximum shearing stress in each rod. Neglect the effect of fillets and of stress concentrations. It is given that P $=145$ lb$.$

The maximum shearing stress in rod AB is

$4350\mathrm{.}35$

psi.

The maximum shearing stress in rod BD is Knowing that rods $AB$ and $BD$ are of diameters $1\mathrm{.}25$ in$.$ and $1\mathrm{.}75$ in$.,$ respectively, determine the maximum

shearing stress in each rod. Neglect the effect of fillets and of stress concentrations. It is given that $P=145$

lb$.$