Introduction and Application of Buckling Evaluation for Steel Containment Vessel Head of Nuclear Power Plant

Based on the study of ASME code case N-284 about metal containment shell buckling design,a simplified method for buckling analysis and evaluation for steel containment head of the advanced pressurized-water reactors is presented and described.Meanwhile,the buckling evaluation macro is developed by using ANSYS parameter design language.Then the buckling safety for steel containment head of the advanced nuclear plant under the severe accident condition is estimated.