Hello everybody

I am currently introducing myself in WRC 107 reading and trying to understanding and comparing with the Example 9 from Coade's literature.

My doubst are as follow:
1.- According to WRC 107 4.3.1.1 Circumferential stress in step 1 is stated: "...enter fig 3C and read off the dimensionless membrane force [NΦ/P/Rm]", but Coade's example gives two diferent values using fig 4C and 3C, if fig 4C is used to calculate Longitudinal stress according to WRC 107.

2.- In line wuth the above said, WRC 107 in step 2 states: "...enter fig 1C or 1C-1 and find the dimensionless bending moment [MΦ/P], but Coade's example uses fig 1C and 2C1.Why?

As I said at the beginnig I am reading for the first time, but I don't want to continue with wrong ideas or concepts in mind.

Thank you very much.