ECCOMAS Thematic Conference on
Computational Modeling of Complex Materials across the Scales
– CMCS 2017 –

Date and location: 7-9 November, Paris
Chairperson(s): J. Yvonnet (University Paris-Est, France), MGD. Geers (University of Eindhoven)
Number of participants: 85 from 14 countries

The objectives of the international CMCS 2017 conference were to present recent state-of-the-art developments in multiscale modeling of complex materials with computational approaches. This thematic conference focused on one hand on the modeling of complex (i.e. multiphysics, realistic microstructures) microstructural phenomena and on the other hand on the upscaling of these phenomena at coarse (engineering) scales to determine their effective or emergent behavior. The goal was to gather scientists from different disciplines working on scale bridging problems in materials and structures to make a step forward in the development of these approaches and to target integration in future engineering tools. The conference gathered 85 participants from 14 countries including from Europe, North America and Asia.

The plenary conferences, given by highly acknowledged experts in this area (Michael Ortiz, California Institute of Technology, USA; William Curtin, EPFL, Switzerland; Kenjiro Terada, Tohoku University, Japan and Samuel Forest, Ecole des Mines ParisTech, France), have provided overviews and recent developments on the following subjects:

  • Multiscale modeling of elastoplastic materials with both damage and non-standard behavior, with data-based molecular dynamics simulations;
  • Coupling between discrete dislocation dynamics and molecular dynamics for modeling hardening in metals;
  • New multiscale methods to treat highly complex nonlinear heterogeneous materials with enough efficiency to be used in industrial codes;
  • Combination of experiment, imaging techniques and large-scale simulations for plasticity and damage in polycrystals.

An obituary in honor of Prof. Christian Miehe, former Professor at Stuttgart University, Germany, and who provided a giant contribution to multiscale modeling of materials and to computational mechanics in general, has been given by Prof. Peter Wriggers (Univ. Hannover, Germany).

The different works presented have allowed showing that the current topics in this area, and which have been investigated during this conference, include:

  • Concurrent multi-scale simulations: applications to different complex Multiphysics problems
  • Concurrent multi-scale simulations: reducing the complexity of computations
  • Modeling of microcracks, interfaces and localization in microstructures
  • Advanced effective and mean-field methods for multiscale methods
  • Stochastic and statistical approaches in multiscale methods
  • Numerical generation of microstructures
  • Microscale-based material modeling
  • Advanced numerical methods for microstructural calculations
  • Dynamic homogenization
  • Multiphysical couplings in multiscale problems
  • Experiments and microscale parameters identification
  • Atomistic and discrete simulations at the micro/nanoscale
  • Non-separation of scales

The detailed program can be found on the website:

 The conference has been sponsored by Labex MMCD and several projects funded by Labex MMCD have been presented, including J. Kodjo and S. Souguir PhD works.

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