University of Minnesota
Aerospace Engineering and Mechanics
Spring 2003 Seminar Series



Viscosity in Solids


Prof. Stuart Antman

Department of Mathematics, University of Maryland


Abstract

After 50 years of intense effort, there is now a growing consensus about the kinds of constitutive restrictions that are suitable for describing the nonlinear elastic behavior of solids. It is time to consider seriously the nature of the simplest dissipative mechanism for solids, that of (nonlinear) viscosity. This lecture treats several surprising aspects of viscosity in solids, which has a character very different from viscosity in fluids. These include its roles in (i) preventing total compression, (ii) justifying stability analyses, (iii) justifying asymptotic methods for dynamical problems, and (iv) formulating invariant numerical schemes for mollifying shocks.

Friday, March 28, 2003
209 Akerman Hall
2:30-3:30 p.m.


Refreshments served after the seminar in 227 Akerman Hall.
Disability accomodations provided upon request.
Contact the AEM Office,612- 625-8000.