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MEAM Seminar: “Electrets, Magnetics and Deformation in Soft Materials”

October 5, 2021 at 10:00 AM - 11:30 AM
Details
Date: October 5, 2021
Time: 10:00 AM - 11:30 AM
Event Category: Seminar
  • Event Tags:,
  • Organizer
    Mechanical Engineering and Applied Mechanics
    Phone: 215-746-1818
    Venue
    Zoom – Email MEAM for Link peterlit@seas.upenn.edu

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    Soft robotics, energy harvesting, large-deformation sensing and actuation, are just some of the applications that can be enabled by soft dielectrics that demonstrate substantive electromechanical coupling. Imagine now also a material that will produce electricity and deform substantively via a contactless, wireless magnetic signal. Unfortunately, truly soft, naturally occurring piezoelectric or magnetoelectric materials essentially do not exist. In this presentation, I will illustrate how mechanics and the concept of electrets i.e. materials with immobile embedded charges and dipoles, may be used for the design of soft piezoelectric, magnetoelectric, and electrocaloric materials. I will also briefly discuss the ramifications our results to explain biophysical phenomena such as the infrared vision of snakes or the ability of some animals to detect magnetic fields.