Speaker
Description
A major roadblock in the widespread adoption of multiscale modeling as a simulation technique is the complexity in implementing the coupling of existing softwares seamlessly at different physical and computational scales. In this work, we present a software framework which couples a hierarchy of surrogate models on the micro-scale, to a macro-scale model. The framework consists of two software products: preCICE and the Micro Manager. preCICE is an open-source black-box partitioned coupling library for multiphysics simulations. By design, preCICE couples two or more simulation softwares on the same physical scale. The Micro Manager adaptively controls a large number of micro-scale simulations. It is itself coupled to preCICE. This software framework allows for coupling, e.g., finite element (FE) software such as CalculiX and Abaqus to existing micro-mechanics solvers, like for example, FANS (Fourier Accelerated Nodal Solvers). We present initial results of benchmarking the coupling of FANS on the micro-scale with the FE solver CalculiX on the macro-scale. Instead of using a single solver on the micro-scale, a hierarchy of models can be deployed. As a proof of concept we show how a hierarchy of micro-scale models can adaptively be coupled to the macro-scale model for a 3D mechanics problem.
