from an unnamed source but something that may help your quest on the design of components for pressure cycling...

304.8 Fatigue Analysis
304.8.1 – Pressure Cycling Fatigue due to pressure cycles of components and other piping elements shall be substantiated by one or more of the following means (calculations and documentation showing compliance shall be available for the owners approval):
(a) Extensive successful service experience under comparable conditions with similarly proportioned components of the same or like material.
(b) Experimental stress analysis such as described in BPV Code, Section VIII, Division 2, Part 5.
(c) Pressure fatigue test utilizing methodology contained in BPV Code, Section VIII, Annex 5.F or equivalent. Leak testing in accordance with para. 345 shall be required at intervals to be determined by the designer to verify the integrity of the pressure boundary and certify the component’s expired number of test cycles.
(d) For any of the above, the designer may interpolate between sizes, wall thicknesses, and pressure classes and may determine analogies among related materials.