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KMID : 0371819960280060576
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Nuclear Engineering and Technology
1996 Volume.28 No. 6 p.576 ~ p.582
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Integrity of the Reactor Vessel Support System for A Postulated Reactor Vessel Closure Head Drop Event Event
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Tae-Wan Kim
Ki-Young Lee/Dae-Hee Lee/and Kang-Soo Kim
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Abstract
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The integrity of reactor vessel support system of the Korean Standard Nuclear Power Plant (KSNPP) is investigated for a postulated reactor vessel closure head drop event. The closure head is disassembled from the reactor vessel during refueling process or general inspection of reactor vessel and internal structures, and carried to proposed location by the head lift rig. A postulated closure head drop event could be anticipated during closure head handling process. The drop event may cause an impact load on the reactor vessel and supporting system. The integrity of the supporting system is directly relevant to that of reactor vessel and reactor internals including fuels. Results derived by elastic impact analysis, linear and non-linear buckling analysis and elasto-plastic stress analysis of the supporting system implied that the integrity of the reactor vessel supporting system is intact for a postulated reactor vessel closure head drop event.
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KEYWORD
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