AN AUTOMATIC PROCEDURE WITH A CONTROL OF ACCURACY FOR FINITE-ELEMENT ANALYSIS IN 2D ELASTICITY

This paper gives a procedure for an automation of the entire finite el ement analysis for 2D or axisymmetric elastic structures with a contro l of accuracy. The user describes the problem and the level of desired accuracy. The procedure then provides an approximate solution for a m inimal computation cost. This procedure uses an error measure based on the constitutive relation [1-5] and an efficient adaptive technique [ 6] which automatically take account of the regions of stress concentra tion. Examples are presented for discretizations using 3- or 6-node tr iangular elements.