Virtual Demonstration Tests using the Next-generation Computational Solid Mechanics Simulator

We have been developing a next-generation computational solid mechanics simulation system based on the ADVENTURE, which is designed to be able to analyze a three dimensional Finite Element (FE) model over hundreds of millions of Degrees Of Freedom (DOFs), to achieve the implementation of a virtual demonstration test on the Earth Simulator (ES). Main FE analysis process of the system, ADVENTURE_Solid based on the hierarchical domain decomposition method and an IBDDDIAG method, was ported to the vector-parallel supercomputer. For a post process of a huge scale analysis, we have developed a parallel off-line visualization system, which is able to implement on PC clusters and the ES. Moreover, to utilize our system on parallel computers via computer networks, we developed an integrated user support system, which is implemented on Windows PC and has a function of an agent-technology. As an implementation of a virtual demonstration test using our system, a Boiling Water Reactor (BWR) pressure vessel of a nuclear power plant, whose model is provided in cooperation with industries, has been analyzed. Furthermore, a Carbon Fiber Reinforced Plastics (CFRP) composite tank model, which is for the purpose of high-pressure hydrogen storage, has been analyzed. In this report, we present an outline of our integrated user support system based on computer networks, and show computational performances of a seismic response analysis of the BWR model and a 3-D elastoplastic analysis of the CFRP tank model.