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SUMMARY:Mechanically-Grown Morphogenesis of Voronoi-Type Materials - Zahra
  Hooshmand Ahoor (University of Cambridge\, Dept. of Engineering)
DTSTART:20250327T130000Z
DTEND:20250327T140000Z
UID:TALK228283@talks.cam.ac.uk
CONTACT:Anand Srinivasan
DESCRIPTION:Numerous living organisms\, from plants to animals\, have uniq
 ue internal architecture that evolves during ontogeny. Unlike nature where
  morphogenesis occurs naturally via multiple actuation mechanisms (chemica
 l\, mechanical\, electrical\, thermal\, etc.)\, synthetic systems require 
 robust computational algorithms to evolve. This work proposes a novel comp
 utational morphogenesis process for designing random (i.e.\, non-periodic)
  composite materials with smooth\, polydisperse Voronoi-type inclusions. T
 hese inclusions feature non-uniform intervoid ligament thicknesses and are
  randomly embedded within a base matrix phase. The resulting geometries\, 
 termed M-Voronoi (from mechanically grown)\, can achieve very low relative
  densities. This is achieved using a numerical process based on large-stra
 in\, nonlinear elastic void growth mechanics. Additionally\, we introduce 
 a novel remeshing technique capable of handling arbitrary orphan meshes co
 mposed of one or multiple phases. We show that the randomness of the M-Vor
 onoi geometries and the variability in intervoid ligament thickness enhanc
 e the mechanical properties under small and large compressive strains.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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