CENTER FOR COMPUTATIONAL MATHEMATICS COLLOQUIUM

                  UNIVERSITY OF COLORADO AT DENVER



TITLE:   Solution of Large Scale Structural Problems using 
         Domain Decomposition Techniques
 

SPEAKER: Marina Vidrascu, INRIA, Paris, France
         

DATE:    Wednesday, August 28, 1996

PLACE:   Math Conference Room - Suite 540 
         UCD Building, 1250 14th St., Denver

TIME:    2:30 pm (Refreshments served at 2:15 pm)



 
ABSTRACT:
 
The parallel solution of a complex structural problem by domain decomposition
methods is achieved by splitting the original domain of computation 
in smaller non overlapping simpler sub domains, and by reducing the initial
problem to an interface system to be solved by a preconditioned conjugate gradient method. 
 
The Neumann-Neumann  preconditioner is very general and  can be applied
to  linear or nonlinear three dimensional elasticity problems using 
either matching or non matching grids as well as to nonlinear
plates or shells problems.
 
The purpose of the talk is to explain how this method can be 
used to solve structural problems.
The efficiency of this approach will  be illustrated
by the results of several real life numerical experiments.