Stress Functions for Equilibrium Hybrid and Mixed Models

Abstract

In several models of the finite element method it is
necessary to start with a stress field in equilibrium. In
some problems it is known, beforehand, important and non important components of the stress tensor. Considerinc zero the non important components calculations are simplified.
In this paper twelve stress functions in cylindrical
coordinates and ten in spherical coordinates are shown, with several eomponents of the stress tensor considered zero.