I designed dual acting hydraulically driven pressure intensifiers up to pressures of 200,000 psig. I used Div 2 for intermediate pressures of 30 to 60 ksi, due to their monobloc wall construction & performed the std Div 2 fatigue analyses. Above 60 ksi, multiple walls (shrink fit) & autofrettage...
curtis2004,
You forgot to include the temp correction factor for the reduction in allowable stress @ higher temps.
So you need to multiply 1.3*(Sa@RT/Sa@MAWT)*MAWP.NOTE: Use the lowest ratio for vessels constructed of multiple materials, so as to not overstress the weaker materials of...