Mechanics of Materials Lecture 09: Thermal stress

[EDIT] At about 7 min of this video, I did the strange thing of integrating from 0 to 5 m even though the overall length of the shaft is only 2 m. I apologize for this careless mistake. Although it will affect the answer (which should be about 30 kN), the method itself is still correct.

Thermal stress
Lone Star College ENGR 2332 Mechanics of Materials