Using the torque relation (9.5.12) for the rectangular section, compute the nondimensional load-carrying parameter T/b 4 ,

Question:

Using the torque relation (9.5.12) for the rectangular section, compute the nondimensional load-carrying parameter T/μαb⁴, and plot this as a function of the dimensionless ratio b/a over the range 1 ≤ b/a ≤10. For the case where b/a approaches 10, show that the load-carrying behavior can be given by the approximate relation (9.5.15).

Equation 9.5.15