BS 7608 fatigue design equivalent for welded copper pipes?

[barrind]

I need to do some fatigue life calcs for butt welds in copper pipework. If it was steel I would follow the guidance given in BS 7608 which contains S-N curve data for various weld configurations in steel. Is there a similar standard available for welded copper structures? If not how would the fatigue life of the butt welds in a copper pipe be derived?

 

[PriamEngineering]

BS7608 is for steel only. I know of no equivalent for other materials. In your case I would ratio the alloawble stress based on the fatigue strength of the copper v steel (worst case) as a start. If you don't like the answers I would consider the fracture mechanics approach

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