Abstract
The coupled finite element analysis is widely required for research and development in mechanical engineering. As the coupled problem, there is not only doubly coupled problem such as fluid-structure interaction problem and electromagnetic-structure coupled problem but also triply coupled problem and multiscale coupled problem. Furthermore, since several types of coupled analysis method such as monolithic method and partitioned method are presented, the various type of coupled analysis code is required. In this paper, we propose the coupled analysis technique using in-house code and commercial analysis code combining by user subroutine of commercial analysis code and MPI. The problems and solutions are discussed for the system constitution and implementation. As the implementation and analysis example, elasto-plastic contact, electric current and thermal conduction triply coupled analysis and multiscale coupled analysis of resistance spot welding are also described.
