Happijacs, what will happen if.........
When reading about the operation of my happijac electric camper jacks, it stated numerous places, "Never raise the back of the camper higher than the front". Why? Is the location of the front jacks...
Forum Discussion
There is no mystery to the engineering of steel tube, round, square, or otherwise. Both shapes resist torsion and bending. And a square tube will resist both more bending, and more torsion (and more compression while we are at it) than a round tube of the same dimensions. This is very well worn and reliable science that can be found in any properties of materials textbook.
I think these myths stem from the fact that using a given amount of material, you can make a round tube that is slightly stronger than a square one. In other words, the same amount of material used to make a 2" square tube could have been used to make a 2.5" round tube, and the round tube will be stronger. But at the same dimensions - 2" tube to 2" tube - the square tube is stronger.
I think these myths stem from the fact that using a given amount of material, you can make a round tube that is slightly stronger than a square one. In other words, the same amount of material used to make a 2" square tube could have been used to make a 2.5" round tube, and the round tube will be stronger. But at the same dimensions - 2" tube to 2" tube - the square tube is stronger.
