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SUMMARY:Mechanics of Soft Composites:  The Interplay between Geometrical S
 tructuring and  Large Deformation to Achieve Novel Behavior - Professor Ma
 ry Boyce\, University of Columbia
DTSTART:20240301T140000Z
DTEND:20240301T150000Z
UID:TALK210013@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:Soft composites offer new avenues for the design and fabricati
 on of materials and devices that exhibit novel properties and functional b
 ehavior. Engineering the interplay between the geometrical structuring of 
 constituent materials and the large deformation behavior of the soft matri
 x enables structural transformations and tunable properties. Here we explo
 re the mechanics and the design of soft composites through analytical and 
 numerical modeling as well as through experiments on physical prototypes f
 abricated using multi-material 3D printing. A first exemplar set focuses o
 n both patterned and layered structures which exhibit deformation-induced 
 pattern transformations. These structural transformations result in concom
 itant changes in a multitude of behaviors: giving superelastic and multili
 near elastic response\, enhanced mechanisms for energy storage\, and the a
 bility to manipulate wave propagation and alter phononic band gaps. Inspir
 ed by natural material systems\, we also explore soft composite materials 
 with alternating soft/stiff layered structures. The discrete anisotropic n
 ature of these material systems are demonstrated to provide protective yet
  flexible armor and are separately found to be a novel design for soft act
 uators\, transforming local compressive loading to large scale rotational 
 motion. Also inspired by nature\, a third set presents soft matrices augme
 nted by stiff particles which yield a material with morphable surface topo
 logies.
LOCATION:Department of Engineering - LT2
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