Capacity Checks Methods for checking structural capacity of rises, mooring lines and other elements are available. These include checks based on DNV OS F201, DNV OS E301 and ISO 13628-7, a tension and curvature capacity using a simple utilization equation and von Mises combined loading analysis. DNV OS F201 Combined Loading DNV OS E301 Mooring Capacity ISO 13628-7 Combined Loading Analysis Tension and Curvature Capacity Check von Mises Combined Loading Fatigue Analysis DNV OS F201 Combined Loading