[Colloquium] Reminder: Talk by Marie Rognes, University of Oslo, Today

[Katie Casey]

DEPARTMENT OF COMPUTER SCIENCE

UNIVERSITY OF CHICAGO

Date: Wednesday, May 7, 2008
Time: 2:30 p.m.
Place: Ryerson 251, 1100 E. 58th Street

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Speaker:	Marie Rognes

From:		University of Oslo

Web page:	http://folk.uio.no/meg/

Title: Linear Viscoelasticity: Stress-Displacement Mixed Finite  
Element Methods with Weak Symmetry

Abstract: We consider small deformations of a viscoelastic medium in  
the quasi-static equilibrium. The basic Maxwell and Kelvin-Voigt  
models are given special attention. We discuss a mixed finite element  
method based on a stress-displacement formulation of the underlying  
elastic structure. Particular emphasis will be put on a formulation  
enforcing the symmetry of the stress tensor weakly. We demonstrate how  
this approach gives a unified, robust and flexible method for the  
generalized models for linear viscoelasticity, before concluding with  
a demonstration of convergence rates and other numerical experiments.
Joint work with Professor Ragnar Winther, CMA, and Professor Hans  
Petter Langtangen, Simula Research Laboratory.

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Host:	Ridg Scott and Todd Dupont