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UID:0-402@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20180321T163000

DTEND;TZID=Asia/Jerusalem:20180321T173000

DTSTAMP:20230530T180409Z

URL:https://aerospace.technion.ac.il/events/enhancing-the-performance-of-s
 oft-materials-a-guide-for-micro-structural-design/

SUMMARY:Enhancing the Performance of Soft Materials: A Guide for Micro-Stru
 ctural Design
DESCRIPTION:Lecturer:Dr. Noy Cohen\n Faculty:Mechanical Engineering Departm
 ent and Materials Department\n Institute:University of California\, Santa 
 Barbara\n Location:Classroom 165\, ground floor\, Library\, Aerospace Eng.
 \n Zoom: \n Abstract: \n Details: \n Following a short overview of my rece
 nt work on the modelling of the electromechanical response of liquid metal
  embedded elastomers and the non-linear behavior of cellular materials\, t
 his seminar will focus on the coupled electro-mechanical response of diele
 ctric elastomers (DEs). DEs are materials capable of undergoing large defo
 rmations in response to electric excitation. These dielectrics can be empl
 oyed in a wide variety of applications\, such as sensors\, actuators\, and
  energy harvesting devices. Currently\, the functionality of these materia
 ls is limited due to the high electric fields required to obtain meaningfu
 l deformations.\nTo overcome this obstacle\, a better understanding of the
  influence of the micro-structural constituents on the overall behavior is
  required. To this end\, I present a rigorous multi-scale entropy-based an
 alysis that begins with a single dipolar monomer and accounts for the phys
 ical structure of a polymer chain through statistical considerations. By e
 mploying the laws of thermodynamics and variational formulations\, the mac
 roscopic response of a polymer network subjected to a coupled electro-mech
 anical loading is determined.  The merit of the proposed model is demonst
 rated through a comparison with several experimental findings.
CATEGORIES:Seminars
LOCATION:Classroom 165\, ground floor\, Library\, Aerospace Eng.

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