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SUMMARY:Shear bands in granular material - An experimental and numerical s
 tudy
DTSTART:20200605T130000
DTEND:20200605T134500
DTSTAMP:20260509T191330Z
UID:8346f543294ee3945e6b818e55fbb0be57cc09532fe3914e57933d1f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Edward Andò\, CNRS Research Engineer in Laboratoire 3SR\, 
 Grenoble\nAbstract: In this talk we'll go from regular mechanical tests on
  dense sand samples\, put them in an x-ray machine to reveal beautiful and
  complex shear band patterns\, shrink the experiment so that we can simpli
 fy the mechanics and study sear banding at the grain scale. The informatio
 n gathered at this scale is used to make a realistic numerical model of th
 e studied sand allowing us to loop back to the main objective of the exper
 iments -- to learn something about stress-strain behaviour at the continuu
 m scale. A short introduction to x-ray tomography and digital image correl
 ation will be given.\n\nShort bio: Edward Andò is CNRS Research Engineer 
 working in experimental mechanics and more precisely full field measuremen
 t techniques. He is passionate about measurement science in general and ha
 s been working among other things on the mechanics of granular media\, dev
 eloping techniques to reveal grain-scale quantities (but also studies rock
 s\, clay...). He is a user and developer of x-ray and neutron tomography. 
 Edward is a firm believer in open science -- since we're getting much more
  information about many fewer samples it's important to share tools and av
 oid black boxes to avoid a reproducibility crisis -- to this end he is a c
 ore developer of the free software "spam" Software for Practical Analysis 
 of Materials. Edward is a co-founder and editor of the young journal   O
 pen Geomechanics.\n 
LOCATION:Zoom https://epfl.zoom.us/j/94605504143
STATUS:CONFIRMED
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