Chapter 11, Problem 11.62SP

A flat bar is $\frac{3}{8}$ thick and has a centrally located drilled hole of diameter D. The bar is subjected to a $\text{4}000$ lb tensile load. Compute the maximum tensile stress adjacent to the hole

a. if the bar is 2 in. wide and $D=0.\text{25}$ in.

b. if the bar is $\text{2}.\text{5}$ in. wide and $D=0.\text{50}$ in.

c. if the bar is $\text{3}$ in. wide and $D=1.00$ in.