Originally Posted by
Mr IGH
A stiffer wheel flexes less and is more resistant to permanent deflections.
Consider an uncooked piece of angel hair and a piece of paper of identical dimensions.
The uncooked pasta is obviously stiffer than the paper. However, it's not more resistant to permanent deflections. If you flex the pasta past a certain point it's not going to return. It breaks. However the paper will not break like the pasta.
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Stiffness refers to the elastic deformation of something. If something is stiff, it resists
elastic deformation. The pasta is stiff. It takes considerably more effort to flex the pasta at all versus the paper. Hell, I'd bet that a breeze could flex a piece of paper that has the same dimensions of a piece of angle hair.
Strength refers to resistance to
permanent deformation. The paper will be stronger than the pasta. You can apply a lot more force to the paper than the pasta without the paper suddenly snapping in half.
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Originally Posted by Mr IGH
This statement doesn't have any foundation in engineering
I assume you must be referring to your own post, correct?