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SUMMARY:Elastic instabilities in soft solids - Dr John Biggins\, CUED
DTSTART:20171027T130000Z
DTEND:20171027T140000Z
UID:TALK86231@talks.cam.ac.uk
CONTACT:Hilde Hambro
DESCRIPTION:We prototypical elastic instability is the buckling of a slend
 er column under a compressive load. Soft elastic solids\, such as rubbers\
 , gels\, and biological tissues\, are united by their ability to sustain v
 ery large shape changes\, and consequently undergo a range of more exotic 
 elastic instabilities\, many of which we are only now understanding. In th
 is talk I will discuss the three instabilities I spoke about in my recent 
 CUED job talk - fingering in soft solid layers under tension\, beading in 
 solid cylinders subject to surface tension and sulcus formation at the bou
 ndary of soft solids in compression - then present for the first time some
  new results on peristaltic undulation in cylindrical cavities and fingeri
 ng in solid layers subject to gravity. I will finish by arguing that elast
 ic instability underpins the formation of the folds on the surface of the 
 human brain.
LOCATION:Oatley Seminar Room\, Department of Engineering
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