![]() The results of the evaluation showed the initial design did not meet the desired fatigue design life. The evaluation included performing design calculations in accordance with Section VIII, Division 1, performing a finite element stress analysis for cyclic loads, and conducting a subsequent fatigue evaluation. The results of the limit load analyses showed the design of the pressure vessel to be acceptable.Ī process tank with a segmented removable upper head was evaluated for operating conditions including cyclic loads from a mixer attached to the top of the tank. Limit load analyses were therefore performed in accordance with the ASME Boiler & Pressure Vessel Code, Section VIII, Division 2. Since materials had already been ordered, the fabricator wished to avoid design modifications if possible. Elastic stress analyses showed stresses exceeded the ASME Code allowable stress limits. FEA was used since evaluation of the connection of the nozzles to the vessel were outside the limits of applicability of WRC 107. ![]() ![]() ![]() The following are a few examples of recent pressure vessel projects we’ve completed: Elastic Stress and Limit Load Analyses of a Pressure VesselĪn ASME pressure vessel with large-sized nozzles and significant external nozzle loads was evaluated using finite element analysis (FEA). ![]()
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