Title:
Geometric Underpinnings of Auxetic Behavior

No Thumbnail Available
Files
streinu.mp4 (338.61 MB)
streinu_videostream.html (1.01 KB)
transcription.txt (27.8 KB)
Author(s)
Streinu, Ileana
Authors
Advisor(s)
Advisor(s)
Editor(s)
Associated Organization(s)
Series
Collections
Scholarly Events
Supplementary to
Permanent Link
http://hdl.handle.net/1853/59696
Abstract
In materials science, auxetic behavior is characterized by negative Poisson's ratios. We have recently developed a purely geometric theory of auxetic behavior for periodic framework materials. In this talk I will present the main ideas (rooted in rigidity theory) as well as the algorithmic consequences, which lead to efficient methods for detecting the local (infinitesimal) behavior. The design of novel two dimensional auxetic structures is facilitated by our theory of expansive mechanisms, fully characterized as periodic pseudo-triangulations. I will conclude with some recent results for designing three dimensional auxetic structures. Joint work with Ciprian Borcea, Rider University.
Sponsor
Georgia Institute of Technology. College of Sciences
 Georgia Institute of Technology. Institute for Materials
 Georgia Institute of Technology. Parker H. Petit Institute for Bioengineering and Bioscience
 Georgia Institute of Technology. School of Materials Science and Engineering
 Georgia Institute of Technology. School of Physics
 American Physical Society
 Exxon Mobil Corporation
 National Science Foundation (U.S.)
Date Issued
2018-04-18
Extent
42:09 minutes
Resource Type
Moving Image
Resource Subtype
Lecture
Rights Statement
Rights URI