OS1416 プレストレストコンクリート製原子炉格納容器の限界耐圧評価に関する検討 : その2:ライナ部の検討

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  • OS1416 Analytical Study on Ultimate Pressure Capacity of Prestressed Concrete Containment Vessel : Part2: Study on Liner

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To evaluate an ultimate pressure capacity for severe accidents of Pre-stressed Concrete Containment Vessel (PCCV), an analysis model of PCCV for evaluation was constructed, and zoom up analysis focused on liner ductile failure using standard value for material properties was performed to compare with the pressure resistance test for the PCCV model with a scale of 1 to 4 performed at Sandia National Laboratories in the US. Leak pressure was evaluated by the analysis and found to be slightly higher than the actual value, however, the behavior of the liner leading to failure mode were confirmed to be consistent with experimental results. Therefore, applicability of evaluation methods was verified.

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