Thanks for the responses.
The sort of answer I am hoping to find is always going to be an approximate solution.
Could you explain further the analysis used for a pin in a hole- see ASME BTH or similar references? - I tried to look this up but was unsuccessful.
Also to answer your question...
Following on from my reading of thread507-310434
I'm trying to find the yield load of a circular ring under tensile loading, given by Roark's 7th Edition, Table 9.2.
Roark's equations show various different loading arrangements, mostly external forces (W) compressing the ring towards the ring...