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Assignment 10:

We had a 2X4 block of steel with a 1Ē hole in it, we were to try and reduce the stress as much as possible.

Attempt 1.PNG

First try, drilled a hole, didnít help a lot, but took it down a little.

Attempt 3.PNG

Figured out that the farther you stretch the oval, the more distributed the stress gets and therefore lessens it.

Attempt 8.PNG

Making Swiss cheese didnít really help.

292 just holes.PNG

After some time, started to make symmetrical, declining radius holes on either side. Seemed to be lessening stress.

288.PNG

Continuing on the trend, got down to 288, 25 less than the previous dayís low.