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CALSCALE:GREGORIAN
X-WR-CALNAME:Physical Mathematics Seminar
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260712T220218Z
UID:tag:localist.com\,2008:EventInstance_36361734293760
DTSTART:20210413T183000Z
DTEND:20210413T193000Z
DESCRIPTION:Speaker:  Chris Rycroft  (Harvard)\n\nTitle:  Uncovering the ru
 les of crumpling with a data-driven approach\n\nAbstract: \n\nWhen a sheet
  of paper is crumpled\, it spontaneously develops a network of creases. De
 spite the apparent disorder of this process\, statistical properties of cr
 umpled sheets exhibit striking reproducibility. Recent experiments have sh
 own that when a sheet is repeatedly crumpled\, the total crease length gro
 ws logarithmically [1]. This talk will offer insight into this surprising 
 result by developing a correspondence between crumpling and fragmentation 
 processes. We show how crumpling can be viewed as fragmenting the sheet in
 to flat facets that are outlined by the creases\, and we use this model to
  reproduce the characteristic logarithmic scaling of total crease length\,
  thereby supplying a missing physical basis for the observed phenomenon [2
 ].\n\nThis study was made possible by large-scale data analysis of crease 
 networks from crumpling experiments. We will describe recent work to use t
 he same data with machine learning methods to probe the physical rules gov
 erning crumpling. We will look at how augmenting experimental data with sy
 nthetically generated data can improve predictive power and provide physic
 al insight [3].\n\n[1] O. Gottesman et al.\, Commun. Phys. 1\, 70 (2018).\
 n\n[2] J. Andrejevic et al.\, Nat. Commun. 12\, 1470 (2021).\n\n[3] J. Hof
 fmann et al.\, Sci. Advances 5\, eaau6792 (2019).\n\n \n\nhttps://mit.zoom
 .us/j/95597721876\n\nMeeting ID: 955 9772 1876
LOCATION:
SUMMARY:Physical Mathematics Seminar
URL;VALUE=URI:https://calendar.mit.edu/event/physical_mathematics_seminar_9
 735
CATEGORIES:Conferences/Seminars/Lectures
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