Hoop Stress Analysis in a Thick Wall Pipe

[Attie01]

Good day,

I came across this paper (

http://www.acwhyte.fsnet.co.uk/ovalpipepaper.htm)

that explains how to calculate the hoop stress in an oval shaped thin walled pipe. Do you know of a similar paper explaining how to calculate the hoop stress in an oval shaped thick wall pipe?

Thanks!