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Photoelastic stress analysis of a nuclear reactor pressure vessel

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Sommario

La ricerca ha come oggetto l'analisi fotoelastica dello stato di tensione in campo elastico, dovuto a pressione interna e a serraggio iniziale, nel contenitore e nella testata di un reattore nucleare.

I risultati ottenuti sono stati valutati sulla base degli errori di misura e sulla base di un confronto con quelli ottenuti sperimentalmente da altri autori per geometrie non troppo diverse da quella relativa al caso studiato e con metodi numerici per la stessa geometria.

Si è cercato di estendere i risultati, confrontandoli con quelli ottenuti con l'applicazione della teoria di Eringen in modo da dare loro una validità più generale.

Summary

The state of stress from internal pressure in a nuclear reactor pressure vessel was examined using photoelastic models.

The results were compared with those obtained from Eringen theoretical analysis.

The Poisson ratio effect was investigated with reference to a cylinder-sphere junction.

The results were also compared with photoelastic results for similar dimensions and with the values of a numerical analysis with finite element method of other authors.

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References

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Freddi, A. Photoelastic stress analysis of a nuclear reactor pressure vessel. Meccanica 7, 183–204 (1972). https://doi.org/10.1007/BF02128764

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  • DOI: https://doi.org/10.1007/BF02128764

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