Аналіз динамічної поведінки і напружено-деформованого стану захисної оболонки реакторного відділення АЕС в умовах нестаціонарних впливів
The paper presents the analysis of dynamic behavior of the reinforced concrete containment of NPP unit under the combined effect of internal pressure shock caused by the accident in the reactor hall and seismic impact of design-basis earthquake using the finite element method (FEM) and DIPROS softwa...
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| Datum: | 2016 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | Ukrainian |
| Veröffentlicht: |
State Scientific and Technical Center for Nuclear and Radiation Safety
2016
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| Online Zugang: | https://nuclear-journal.com/index.php/journal/article/view/34 |
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| Назва журналу: | Nuclear and Radiation Safety |
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Nuclear and Radiation Safety| Zusammenfassung: | The paper presents the analysis of dynamic behavior of the reinforced concrete containment of NPP unit under the combined effect of internal pressure shock caused by the accident in the reactor hall and seismic impact of design-basis earthquake using the finite element method (FEM) and DIPROS software. Using the modal analysis and numerical solution of the FEM equations of containment concrete, the stress-strain state of the building structure in the post-accident period was defined. It is shown that the maximum intensity of the stresses in the steel liner of the containment does not exceed the yield strength of the steel liner material. Accordingly, the liner integrity is preserved, the containment remains operable and ensures compliance of radiation safety requirements. |
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