For the beam loaded as shown at the right we are able to fin

For the beam loaded as shown at the right, we are able to find the maximum bending normal stress to be -7456 psi at the top fiber of the beam, 27 inches from the left end. Consider that to be the limiting location for analysis. a. What will be the bending shear at that point? b. Determine the yield strength needed for the beam to have a factor of safety of 2, using the distortion energy theory.

Solution

Design a flywheel for punching a plate with a shearing strength of 70 ksi. The following criteria are:

1. Space = 60\" x 60\" x 8\"

2. Let the diameter be less than 5 to 7 in. the same

3. Let the width be less than 2-3 in. the same

4. Hole diameter is 4\"

5. Plate thickness is 3/4 inches ; 150 rpm average speed