Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Safety assessment of Generation III nuclear power plant buildings subjected to commercial aircraft crash Part II: Structural damage and vibrations

  • Qu, Y.G. (China Nuclear Power Design Co. Ltd, State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
  • Wu, H. (Research Institute of Structural Engineering and Disaster Reduction, College of Civil Engineering, Tongji University) ;
  • Xu, Z.Y. (China Nuclear Power Design Co. Ltd, State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
  • Liu, X. (China Nuclear Power Design Co. Ltd, State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
  • Dong, Z.F. (China Nuclear Power Design Co. Ltd, State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
  • Fang, Q. (PLA Army Engineering University)
  • Received : 2019.06.03
  • Accepted : 2019.07.11
  • Published : 2020.02.25
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Abstract

Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part II, based on the verified finite element (FE) models of aircrafts Airbus A320 and A380, as well as the NPP containment and auxiliary buildings in Part I of this paper, the whole collision process is reproduced numerically by adopting the coupled missile-target interaction approach with the finite element code LS-DYNA. The impact induced damage of NPP plant under four impact locations of containment (cylinder, air intake, conical roof and PCS water tank) and two impact locations of auxiliary buildings (exterior wall and roof of spent fuel pool room) are evaluated. Furthermore, by considering the inner structures in the containment and raft foundation of NPP, the structural vibration analyses are conducted under two impact locations (middle height of cylinder, main control room in the auxiliary buildings). It indicates that, within the discussed scenarios, NPP structures can withstand the impact of both two aircrafts, while the functionality of internal equipment on higher floors will be affected to some extent under impact induced vibrations, and A380 aircraft will cause more serious structural damage and vibrations than A320 aircraft. The present work can provide helpful references to assess the safety of the structures and inner equipment of NPP plant under commercial aircraft impact.

Keywords

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