Analytical study on dynamic buckling of reactor containment vessel
Creators
- 1. Mitsubishi Heavy Industries, Kobe (Japan). Nuclear Plant Component Designing Dept.
- 2. University of Tokyo, Tokyo (Japan)
- 3. Keio University, Yokohama (Japan)
Description
The dynamic buckling of a reactor containment vessel under earthquake conditions is evaluated using a nonlinear finite element method. It is based on the four-node MITC (mixed interpolated tensorial components) shell element originally proposed by K.J. Bathe, which has been modified by the authors to include the effect of large rotational increments. At first, the buckling modes for a thin cylindrical shell under a simplified base excitation were classified, then the dynamic buckling analysis of a typical PWR steel containment vessel was carried out, considering both geometrical and material nonlinearities, to compare the results with those of a conventional static analysis. It was found that the global shear buckling of a steel containment vessel occurred under a load level several times greater than the design earthquake, and the buckling load estimated by the conventional analysis was smaller than the buckling load estimated by the dynamic analysis. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Engineering and Design
- Journal Volume
- 176
- Journal Issue
- 3
- Journal Page Range
- p. 215-223.
- ISSN
- 0029-5493
- CODEN
- NEDEAU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Switzerland
- INIS RN
- 29018892
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- BUCKLING; CONTAINMENT BUILDINGS; CYLINDRICAL CONFIGURATION; DESIGN BASIS ACCIDENTS; EARTHQUAKES; FINITE ELEMENT METHOD; GEOMETRY; NONLINEAR PROBLEMS; PWR TYPE REACTORS; SEISMIC EFFECTS; STEELS; STRESS ANALYSIS
- Descriptors DEC
- ACCIDENTS; ALLOYS; BUILDINGS; CALCULATION METHODS; CARBON ADDITIONS; CONFIGURATION; CONTAINMENT; ENRICHED URANIUM REACTORS; IRON ALLOYS; IRON BASE ALLOYS; MATHEMATICS; NUMERICAL SOLUTION; POWER REACTORS; REACTOR ACCIDENTS; REACTORS; SEISMIC EVENTS; THERMAL REACTORS; TRANSITION ELEMENT ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- 10 refs.