- #1

- 8

- 0

here's the exercise: http://davidhansson.deviantart.com/art/Wp-20131015-001-407472489

and here's the solution from the book: http://davidhansson.deviantart.com/art/Wp-20131015-005-407472644

what I don't get, is what internal torque really means and how it become (1/2)*25x*x ,,

Where does the "(1/2)" comes from, and where does the extra x comes from..

My intuition is that it should be integrated like: 1/((pi/2)*75*10^9) ∫(15000/0.6)*x integration from 0 to 0.6 ,, which would be the twist in radians for the part AB.

I apologies if it's hard to understand

lot's of thanks/ David Hansson