Stress Analysis in Nozzle of Pressure Vessel With CAESAR II

The basic theory of stress analysis in the nozzle of pressure vessel was discussed,then two common methods of checking nozzle stress were introduced such as the evaluation chart method and the FEA method called WRC107.Taking close drain vessel as an example,the body of the vessel and the supports were modeled,then WRC107 was used in the checking,how to select the boundary condition was discussed.At last,how to improve the stress status in the vessel nozzle was put forward,then a reasonable way of pipe laying in the nozzle of vessel was recommended.