Full scale seismic response simulation of nuclear power plant subjected to strong earthquake

Abstract eng:
Recent strong earthquakes attacking some Japanese nuclear power plants such as the Great East Japan Earthquake (GEJE) of 9.0 Mw on March 11, 2011 recalled the importance of seismic design of existing nuclear power plants seriously. Latest high-performance computational mechanics simulation is a promising approach that gives us the ability to predict complicated future scenarios quantitatively and to take adequate measures for preventing and mitigating potential damages. In this paper, we explain some key technologies, i.e. the Hierarchical Domain Decomposition Method (HDD) with Balancing Domain Decomposition (BDD) preconditioner, of our developing parallel finite element software ADVENTURE and its application to a seismic response simulation of an actual nuclear power plant subjected to GEJE during 140 seconds using 200 million DOFs mesh on the K computer.

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