Preliminary Analysis of Large Penetration Enclosures for Containment Vessels Subject to Beyond Design Basis Loadings

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by R. F. Kulak, Argonne Natl Lab, Argonne, IL, USA,
B. J. Hsieh, Argonne Natl Lab, Argonne, IL, USA,
J. E. Ash, Argonne Natl Lab, Argonne, IL, USA,
J. M. Kennedy, Argonne Natl Lab, Argonne, IL, USA,
G. A. McLennan, Argonne Natl Lab, Argonne, IL, USA,

Document Type: Proceeding Paper

Part of: Structural Engineering in Nuclear Facilities:

Abstract: Numerical simulations of the macro-deformations of the sealing surfaces (gasketed junctures) of a PWR steel containment vessel's equipment hatch subjected to accident loadings have been performed. Results for the equipment hatch juncture indicate that the rotations of the hatch cover and penetration sleeve must be accounted for when performing leakage analysis because they can affect the compression of the gasket even though the gasket is in a pressure-seated configuration. Results from a leakage analysis indicated that excessive leakage can occur if the surface roughness is high and/or the compression set is high.

Subject Headings: Numerical models | Load factors | Leakage | Sealing | Containment vessels | Ship collisions | Equipment and machinery | Compression |

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