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SUMMARY:About new constraints induced by additive manufacturing technologi
 es on the shape optimization process - Charles Dapogny (Université de Gre
 noble)
DTSTART:20190613T133000Z
DTEND:20190613T143000Z
UID:TALK125941@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:However they allow\, in principle\, to assemble arbitrarily co
 mplex structures - thereby arousing much enthusiasm within the engineering
  community - modern additive manufacturing technologies (also referred to 
 as 3d printing) raise new difficulties which have to be taken into account
  from the early stages of the construction\, and notably at the level of t
 he design optimization.  In this presentation\, we shall deal with the mod
 eling and the understanding of two such major challenges related to additi
 ve construction methodologies. The first one of these is to avoid the emer
 gence of overhanging regions during the shape optimization process\, that 
 is\, of large\, nearly horizontal regions hanging over void\, without suff
 icient support from the lower structure. The second difficulty addressed i
 n this presentation is related to the fact that the use of an additive tec
 hnique to realize a structure entails a significant alteration of the mech
 anical performance of the constituent material of the assembled shape: thi
 s material turns out to be inhomogeneous\, and it presents anisotropic pro
 perties\, possibly depending on the global shape itself.<br> These works h
 ave be conducted together with Gr&eacute\;goire Allaire\, Rafael Estevez\,
  Alexis Faure and Georgios Michailidis.
LOCATION:Seminar Room 1\, Newton Institute
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