An aluminum bar of circular cross section and the profile specified in Prob. C2.1 is subjected to a 15-N m torque. Use numerical integration to compute the angle of twist of the bar. For aluminum, use G = 30 GPa.
Prob. C2.1:
The figure shows an aluminum bar of circular cross section with variable diameter. Use numerical integration to compute the elongation of the bar caused by the 6-kN axial force. Use E = 70 × 109 Pa for aluminum.
![1339_33dbdce7-2146-4456-aa24-9df2b7bbe598.png](https://secure.tutorsglobe.com/CMSImages/1339_33dbdce7-2146-4456-aa24-9df2b7bbe598.png)