BME Seminar April 1, 2016

Shawn A. Chester, Ph.D.
Assistant Professor
Mechanical Engineering
New Jersey Institute of Technology


Multiphysics Mechanics of Polymers and Gels


Many new and exciting phenomena in solid mechanics are inherently multiphysics. A few exampled include thermally responsive shape-memory polymers, Joule heating causing creep, and pore pressure effects in geo-materials to name just a few. Because so many technologically important phenomena are inherently multiphysics, constitutive models and associated simulation tools must also include all relevant physics to capture the primary features of the materials response and be truly predictive.

In this talk, I will discuss recent and ongoing research on the multiphysics response of polymeric materials. Specifically, the talk begins with a summary of the experimental capabilities here in mechanical engineering for the test and measurement of the mechanical behavior of polymer materials. That is followed by some examples of using experiments toward modeling real materials systems including amorphous polymers, shape-memory polymers, polymer gels, and soft dielectrics. The talk concludes with ongoing and future work.


About the Speaker:
Shawn Chester is currently an assistant professor in Mechanical Engineering at the New Jersey Institute of Technology. He was previously a postdoctoral at Lawrence Livermore National Laboratory and currently still holds visiting appointment there. Prior to that he obtained his PhD in solid mechanics from the Mechanical Engineering at MIT, and obtained both his BS and MS in Mechanical Engineering from NJIT.

Shawn's research focus in the past few years has been the development of experimentally validated continuum level constitutive theories for large-deformation multi-physics behavior of polymeric materials and the associated numerical implementation. His work spans most aspects of mechanics; experimental characterization, theoretical modeling, numerical implementation, and experimental validation.