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 III: Engine missile impacting SC plate

  • Xu, Z.Y. (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) ;
  • Liu, X. (China Nuclear Power Design Co. Ltd, State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
  • Qu, Y.G. (China Nuclear Power Design Co. Ltd, State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
  • Li, Z.C. (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 : 2019.08.05
  • 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 III, the local damage of the rigid components of aircraft, e.g., engine and landing gear, impacting the steel concrete (SC) structures of NPP containment is mainly discussed. Two typical SC target panels with the thicknesses of 40 mm and 100 mm, as well as the steel cylindrical projectile with a mass of 2.15 kg and a diameter of 80 mm are fabricated. By using a large-caliber air gas gun, both the projectile penetration and perforation test are conducted, in which the striking velocities were ranged from 96 m/s to 157 m/s. The bulging velocity and the maximal deflection of rear steel plate, as well as penetration depth of projectile are derived, and the local deformation and failure modes of SC panels are assessed experimentally. Then, the commercial finite element program LS-DYNA is utilized to perform the numerical simulations, by comparisons with the experimental and simulated projectile impact process and SC panel damage, the numerical algorithm, constitutive models and the corresponding parameters are verified. The present work can provide helpful references for the evaluation of the local impact resistance of NPP buildings against the aircraft engine.

Keywords

References

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