I am designing a short shaft that will see high torque loading. I need the YS to be around 90ksi. My steel supplier has these 2 options in 4140:
4140-4142 Annealed
4140-4142 Heat treated
(Vague at best, I realize)
I would prefer to just buy, machine, and install if possible. What is my best...
I am attempting to calculate the force required to roll a large roll of paper over a lip. The roll of paper is resting stationary on the floor and is "chocked" against a raised lip that I am assuming to be square. I realize that I huge factor in this problem is the firmness of the roll but I am...