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Call for abstracts, WCCM 2018 MS411: Concurrent multiscale modeling in solids and structures: coupling methods from micro to macro scales.

Alejandro Mota's picture

wccm2018

Dear colleagues and friends,

 

On the occasion of the 13th World Congress on Computational Mechanics (WCCM 2018, http://www.wccm2018.org) to be held in New York City on July 22-27, 2018, we are organizing the mini symposium

 

Concurrent multiscale modeling in solids and structures: coupling methods from micro to macro scales (MS 411).

 

We would like to remind you of our recent invitation to submit an abstract to our mini symposium, and the upcoming abstract submission deadline. Abstract submission is open and will remain open until December 31, 2017. Information on submitting an abstract may be found at: http://www.wccm2018.org/abstract-submission.

 

A more detailed description of the mini symposium follows.

 

Best regards,

 

Alejandro Mota, amota@sandia.gov

Irina Tezaur, ikalash@sandia.gov

Coleman Alleman, callema@sandia.gov

 

Sandia National Laboratories

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Materials such as metals, metal alloys, ceramics, glass, sands, soils, and others develop very fine regions of concentrated strain or stress when subject to certain loading conditions. These regions are manifested at the micro scale and may lead to the eventual fracture and failure of systems and structures. The ability to model these phenomena is of critical significance in engineering applications.

 

It is not feasible to conduct micro-scale simulations for macroscopic problems to fully resolve very fine regions. So that computational resources can be efficiently allocated, it is advantageous to perform multiscale analysis. A fine scale model is used in regions to resolve fields that lead to fracture or failure. Away from these regions, a less expensive coarse scale model is used to capture the far field behavior.

 

In concurrent multiscale modeling, the quantities needed in the coarse scale model are computed on-the-fly from the fine scale models as the computation proceeds. In addition, far-field information from the coarse scale model is provided to the fine scale models. This type of concurrent exchange of information between scales is critical for the simulation of phenomena such as fracture and failure, as loading is transferred back and forth between the scales.

 

Multiscale modeling is highly interdisciplinary, with developments occurring independently across fields.  This minisymposium focuses on the fundamental modeling and computational principles underlying concurrent multiscale methods as used for solids and structures.

 

Topics to cover include:

 

- Coupling methods, continuum to continuum, atomistic to continuum

- Variational methods

- Micromechanical homogenization

- Nonlocal methods

 

Abstract submission is open and will remain open until December 31, 2017. Information on submitting an abstract may be found at:http://www.wccm2018.org/abstract-submission.

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