Multiparametric High Computational Strategies for Frictional Contact Problems

摘要

The aim of this work is to develop an efficient strategy for the parametric analysis of problems with multiple contacts in the field of computational mechanics. The applications concern elastic structural assemblies in statics and quasi-statics with local nonlinearities, such as unilateral contact with friction. Our approach is based on the LATIN method associated with a mixed domain decomposition method which is inherently parallelizable. It is very well adapted to libraries such as MPI (Message Passing Interface) which carry out transfers of information among machines. Such libraries were used in order to be able to use PC cluster types of architectures. The objective is to calculate a large number of design configurations, each of which corresponds to a set of values of all the variable parameters (friction coefficients, prestresses) introduced into the mechanical analysis.