Session: 03-08-02: Micromechanics and Multiscale Modeling

Paper Number: 137666

137666 - A Macro Solver Agnostic Software Framework for Massively Multiscale Modeling Using Nasa Multiscale Analysis Tool and Precice 

The multiscale modeling approach is an enabling technology for designing and developing highly engineered, fit-for-purpose materials. It is increasingly evident that accurately resolving sub-scale models is imperative to predict the overall behavior of hierarchical materials at the macro scale. The complexity in implementing seamless coupling of scales with existing software and simulation models remains one of the major roadblocks to the widespread adoption of the multiscale modeling technique. In this work, we present a software framework that integrates the NASA Multiscale Analysis Tool (NASMAT), a 'plug and play' software package enabling users to conduct massively multiscale modeling of hierarchical and nonlinear materials, with different types of pre-existing macro solvers through preCICE. 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 scale. However, with the addition of a multiscaling tool called the Micro Manager, it can couple models at different physical and temporal scales. The framework allows for macro solver-agnostic integration of NASMAT for multiscale simulation. We present initial results of benchmarking the framework by integrating NASMAT with different finite element softwares like Abaqus, CalculiX and FEniCS, via preCICE. The scalability of the framework will be evaluated by analyzing massively multiscale models.

Presenting Author: Ishaan Desai University of Stuttgart

Presenting Author Biography: Doctoral researcher at the University of Stuttgart.