Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Comparative analyses of a shield building subjected to a large commercial aircraft impact between decoupling method and coupling method

  • Han, Pengfei (Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University) ;
  • Liu, Jingbo (Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University) ;
  • Fei, Bigang (State Quality (Beijing) Construction Engineering Testing & Appraisal Center)
  • Received : 2020.09.14
  • Accepted : 2021.07.04
  • Published : 2022.01.25
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Abstract

Comparative analyses of a shield building subjected to a large commercial aircraft impact between decoupling method and coupling method are performed in this paper. The decoupling method is applying impact force time-history curves on impact area of the shield building to study impact damage effects on structure. The coupling method is using a model including aircraft and shield building to perform simulation of the entire impact process. Impact force time-history curves of the fuselage, wing and engine and their total impact force time-history curve are obtained by the entire aircraft normally impacting the rigid wall. Taking aircraft structure and impact progress into account some loading areas are determined to perform some comparative analyses between decoupling method and coupling method, the calculation results including displacement, plastic strain of concrete and stress of steel plate in impact area are given. If the loading area is determined unreasonably, it will be difficult to assess impact damage of impact area even though the accurate impact force of each part of aircraft obtained already. The coupling method presented at last in this paper can more reasonably evaluate the dynamic response of the shield building than the decoupling methods used in the current nuclear engineering design.

Keywords

Acknowledgement

This study was supported by the National Major Science and Technology Projects of China (Grant No. 2018ZX06902016).

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