ercanbaser
Mechanical
- Dec 16, 2003
- 29
I try to find forumula for Moment of Inertia for corrugated hollow pipes. Main Pipe is made of Solid wall construction over which smaller diameter hollow plastic pipe is spirally welded.
Main PIPE:
1200 mm inside diameter
20 mm wall thickness
Spirally wrapped PIPE:
60 mm outside diameter
6 mm wall thickness.
In fact, I try to calculate pipe stiffness by hand.
The formula is S= 6,71 .(EI)/ r3
r : mean radius
E : Modulus of Elasticity (800 GPa for HDPE)
I :Moment of Inertia of Wall Cross Section
How can I calculate "I" by hand?
Main PIPE:
1200 mm inside diameter
20 mm wall thickness
Spirally wrapped PIPE:
60 mm outside diameter
6 mm wall thickness.
In fact, I try to calculate pipe stiffness by hand.
The formula is S= 6,71 .(EI)/ r3
r : mean radius
E : Modulus of Elasticity (800 GPa for HDPE)
I :Moment of Inertia of Wall Cross Section
How can I calculate "I" by hand?
