SOCI 235 Lecture Notes - Lecture 4: Reynolds Group Holdings, Pop-Tops, Boeing 777
26 Nov 2017
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Engineering solutions: the beverage can, the paper clip, passenger jets and the boeing 777. Its strength, which allows stacking, comes from its pressurized contents; The pressurized contents cause the risk that the can will balloon out at the bottom, which would make them unstable on shelves. The solution to this is the inwardly dished bottom . A way had to be found to open the can. This was first dealt with using church key openers and then the invention of the pop top". Pop tops only work with the correct depth of scoring of the can. Too deep weakens the can, too shallow makes it hard to open. There was lots of room here for trial and error leading to incremental improvement. There are multiple possible forms of failure when the can is subjected to compression: split sides, the sloping neck being pushed down into the can, the can bottom popping out, etc.
