A pin in a knuckle joint carrying a tensile load F deflects somewhat on account of this loading, making the distribution of reaction and load as shown in part ( b ) of the figure. A common simplification is to assume uniform load distributions, as shown in part ( c ). To further simplify, designers may consider replacing the distributed loads with point loads, such as in the two models shown in parts d and e . If a=0.5 in, b=0.75 in, d=0.5 in, and F=1000 \mathrm{lbf} estimate the maximum bending stress and the maximum shear stress due to V for the three simplified models. Compare the three models from a designer’s perspective in terms of accuracy, safety, and modeling time.