WCCM Eccomas Arts & Science contest Public Award

19 January 2021

Brayan Murgas is at the origin of this magnificent composition made from images from his work.

Congratulation Brayan Murgas! This image is both scientifically meaningful and aesthetically very successful. No wonder it caught the public's interest when it was awarded the "Arts & Science Contest" prize at the WCCM Ecomas International Conference held online last week.

Brayan Murgas is a 3rd year doctoral student in the MSR team. He is working on a fine description of the mobility of grain joints for its numerical integration in finite element simulations of recrystallisation mechanisms.

The origin of this image began when I started his PhD at CEMEF.

Brayan received his laptop and was looking for a wallpaper. He came up with the idea to do it by himself with the images he obtained from his first simulations. 

To improve the Finite Elements modes, he uses Scanning Electron Microscopes allowing to properly describe grain boundaries.

The images used here represent the steps to immerse EBSD data into a Finite Element code: the Band contrast map which is an EBSD pattern that describes the average intensity of the Kikuchi bands.

The kikuchi bands are formed by electron scattering and describes the orientation of every pixel which is represented in the form of an inverse pole figure in the second slice of the image.

Finally he uses the orientation data of every pixel to construct the three last slices of the image: distance, orientation and grain boundary mobility fields.

With this methodology he can directly compare his results to experimental data and also he replaces in-situ experiments which are time consuming and difficult to perform.

 

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