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The Dynamic Nonlinear Analysis of Shell Containment Building subjected to Aircraft Impact Loading  

이상진 (한국원자력연구소)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.15, no.4, 2002 , pp. 567-578 More about this Journal
Abstract
The main purpose of this study is to investigate the dynamic behaviour of containment building in nuclear power plant excited by aircraft impact loading using a lower order 8-node solid element. The yield and failure surfaces for concrete material model is formulated on the basis of Drucker-Prager yield criteria and are assumed to be varied by taking account of the visco-plastic energy dissipation. The standard 8-node solid element has prone to exhibit the element deficiencies and the so-called B bar method proposed by Hughes is therefore adopted in this study. The implicit Newmark method is adopted to ensure the numerical stability during the analysis. Finally, the effect of different levels of cracking strain and several types of aircraft loading are examined on the dynamic behaviour of containment building and the results are quantitatively summarized as a future benchmark.
Keywords
shell; containment building; aircraft impact load; concrete; element deficiency; Newmark method;
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