815 Non-Intrusive Coupling Algorithms for Finite Element Simulations

Armando Duarte, University of Illinois at Urbana-Champaign
Olivier Allix, Ecole Normale Superieure Paris-Sanclay
The implementation of new discretization methods and solution algorithms in industrial-grade commercial software is often difficult, time-consuming and therefore expensive. As a result, while available commercial software has the breadth of algorithms and finite element technology required to solve many industrial scale problems, they lack recent developments in finite element methods and algorithms required to address emerging simulation challenges such as problems exhibiting multiscale phenomena. In contrast, research software that implement these novel methods and algorithms are typically limited in scope of applications. One strategy to address this issue is to non-intrusively couple commercial and research software [1] and thus provide to the end user simulation and modeling capabilities not available in any single software.
This mini-symposium aims to bring together engineers, mathematicians, computer scientists, and national laboratory and industrial researchers to discuss and exchange ideas on new developments, mathematical analysis, and applications of non-intrusive or weakly-intrusive coupling algorithms for finite element simulations. While contributions to all aspects of this methodologies are invited, topics of particular interest include
• Computational efficiency and robustness of coupling algorithms;
• Convergence, accuracy and stability of coupling algorithms;
• Acceleration techniques for coupling algorithms;
• Verification and validation of coupling algorithms;
• Implementation aspects of coupling algorithms;
• Applications of coupling algorithms to industrial problems exhibiting multiscale phenomena, localized non-linearities, fracture, damage, etc.;
• Coupling algorithms for multi-physics and time-dependent problems;
• Non-intrusive coupling between shell and 3-D models;
• Identification and characterization of problems where non-intrusive coupling algorithms are needed.

[1] M. Duval, J.C. Passieux, M. Salaun and S. Guinard. Non-intrusive coupling: Recent advances and scalable nonlinear domain decomposition. Archives of Computational Methods in Engineering, 23(1):17—38, 2016.