Question

What is the governing ratio for thin walled cylinders?

Answer 1

Answer:

The governing ratio for thin walled cylinders is 10 if you use the radius. So if you divide the cylinder´s radius by its thickness and your result is more than 10, then you can use the thin walled cylinder stress formulas, in other words:

• if $\frac{radius}{thickness} >10$ then you have a thin walled cylinder

or using the diameter:

• if $\frac{diameter}{thickness} >20$ then you have a thin walled cylinder