schlebb
Industrial
- Feb 17, 1999
- 18
In calculating the required wall thickness of a straight pipe I use the formula in section 304.1.2. This is quite straight forward.
My problem is in understanding section 304.2.1.
Can anyone explain to me what I am calculating when I use the formula 3c? It is supposed to be the minimum wall thickness in a bend. However, I need to use the value for "I" in the formula. If I calculate the intrados (inside bend radius) and insert it in the formula, I get a larger value for the wall thickness. If I calculate the extrados (outside bend radius), I get a smaller value.
What am I actually calculating here, and which value determines the required wall thickness?![[ponder] [ponder] [ponder]](/data/assets/smilies/ponder.gif)
My problem is in understanding section 304.2.1.
Can anyone explain to me what I am calculating when I use the formula 3c? It is supposed to be the minimum wall thickness in a bend. However, I need to use the value for "I" in the formula. If I calculate the intrados (inside bend radius) and insert it in the formula, I get a larger value for the wall thickness. If I calculate the extrados (outside bend radius), I get a smaller value.
What am I actually calculating here, and which value determines the required wall thickness?
![[ponder] [ponder] [ponder]](/data/assets/smilies/ponder.gif)