Efficient multi-physics simulations are vital to study interacting systems in science and engineering. In the field of structural mechanics, multi-physics simulations target interactions between structures with different characteristics. Here, we take a partitioned approach to the simulation of structure-structure interaction with the FEM program CalculiX and the coupling library preCICE. We aim to speed up the simulation of nonlinear phenomena via the coupling of linear and nonlinear simulations, restricting nonlinear treatment only to where required. After validation of the preCICE adapter for CalculiX with a linear test case, we study the convergence of implicit coupling and the effect of quasi-Newton methods. The latter prove successful in the acceleration of the coupling. Afterwards, we study the performance in a nonlinear case. Nevertheless, nonlinear effects are not strong enough to bring in a performance improvement; thus, we point to subsequent experimentation.     «

Efficient multi-physics simulations are vital to study interacting systems in science and engineering. In the field of structural mechanics, multi-physics simulations target interactions between structures with different characteristics. Here, we take a partitioned approach to the simulation of structure-structure interaction with the FEM program CalculiX and the coupling library preCICE. We aim to speed up the simulation of nonlinear phenomena via the coupling of linear and nonlinear simulation...     »