When performing a Fatigue analysis using Caesar using PD5500 Fatigue Curve F2 I have a query. Since the general ASME Fatigue curves are based on Alternating Stress vs Number of cycles and as Caesar calculates the Stress Range it is possible to compare the Stress Range values directly against the Fatigue curves from ASME. However as the fatigue curves in PD5500 are based on Stress Range vs Number of cycles and the Caesar Stress Ranges are nominally 1/2 the actual stress range does the input of the fatigue curves from PD5500 have to manipulated to ensure the Caesar calculated Stress Range (50% of the actual) is compared to a relevant Fatigue curve from PD5500?