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SUMMARY:Buckling of Spherical Shells Revisited - John W. Hutchinson\, Scho
 ol of Engineering and Applied Sciences\, Harvard University
DTSTART:20161212T140000Z
DTEND:20161212T150000Z
UID:TALK69434@talks.cam.ac.uk
CONTACT:Hilde Hambro
DESCRIPTION:The stability of structures continues to be scientifically fas
 cinating and technically important.  Shell buckling emerged as one of the 
 most challenging nonlinear problems in mechanics fifty years ago when it w
 as intensively studied\, and it has returned to life with new challenges m
 otivated not only by structural applications but also by developments in t
 he life sciences concerning soft materials.  It is not uncommon for slight
 ly imperfect thin cylindrical shells under axial compression or spherical 
 shells under external pressure to buckle at 20% of the buckling load of th
 e perfect shell.  A brief historical overview of the catastrophic nature o
 f shell buckling will be presented with the non-specialist in mind followe
 d by a discussion of recent work by the speaker and several collaborators 
 on the buckling of spherical shells.  Experimental and theoretical work wi
 ll be described with a focus on imperfection-sensitivity and on viewing th
 e phenomena within the larger context of nonlinear stability.  
LOCATION:Oatley Seminar Room\, Department of Engineering
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