Robin
Penultimate Amazing
- Joined
- Apr 29, 2004
- Messages
- 14,971
Let's do a thought experiment. We have a length of square section steel and a sheet of aluminium, cut and bent so that it forms a snug sleeve around three sides of the full length of the steel.
We put it in a good strong vice with the uncovered side to the back and take a large heavy crowbar and take the strongest whack we can at the front face.
Would we have to sever the aluminium completely in order to do considerable damage on the steel bar inside?
No of course we wouldn't. Same thing applies to the column in question.
Bumping and hilighting the part yankee451 missed.