In the sugar mill they have a single bar with a central groove that is used to press the waste from the cane and place a belt on them to package it and then send it to a later process. The bar is made of a hot-rolled AISI 1095 steel, which has been machined at 2 in diameter and the central slot was machined with a radius of 0.1 in. Due to the process of pressing the rod waste, the bar is a fluctuating load that generates moments that fluctuate between 0 lbf to 25 Klbf in the smallest diameter due to the concentration of stress (in the slot).
Estimate:
1. DCL of the slotted bar under flexing moments
2. Fatigue stress concentration factor
3. Initial alternating and medium bending effort
4. Alternating and average maximum flexion effort
5. Limit resistance to fatigue Se
6. Safety factor due to the Modified Goodman Criterion
7. Safety factor due to the Langer Criterion
8. In accordance with the result of paragraphs 6 and 7, what decision would I make regarding the design of the bar.