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9/11 and another beer-can analogy

January 5, 2018

Further to my earlier experiment on 3 January I conducted the third and final beer-can experiment. What it showed was you cannot take two chunks out of the side of a beer-can and expect it to be as strong as a non-fractured can. However there were lessons to learn.

I took a brick weighing 4.92 lbs and put it on top of the fractured can. Then another brick of the same weight. And another. The sixth brick collapsed the can. And the bricks fell to earth. So that damaged beer-can weighing just over 1/2 oz (0.6) would not support 6 bricks weighing 29.48 lbs before giving way. It would however support 5 bricks (24.6 lbs).

Banks collapse 3

There are 16 oz in a lb

24.6 lbs x 16 = 121.032 oz

How much could the beer-can support of its own weight?

121.032 / 0.6 = 201.72

You can now explain to people that a beer-can into which flew an imaginary plane causing entry and exit fractures will still support more than 200 times its own weight. Furthermore when it did collapse the bricks fell to the side where the excisions had been made. The can did not collapse to the ground but just crushed down at the fracture point.

You can see I have had to drink more cans of beer than is good for me. Sometimes in the interests of science these sacrifices have to be made!


From → 9/11, Uncategorized

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