ADVANCES IN FINITE ELEMENT STUDY ON　SUPPRESSION OF "LOCKING" DIVERGENCE

The study on suppression of "Locking" divergence, andthe progress achieved in developing high performance schemes, are an　important aspect in the last ten years' research & development on the　finite element methods. The so called finiteelement method of high performance is a particular lower-orderdisplacement scheme that offers the following theoretical andcomputational advantages: 1 Approximately preserving all mathematical　and physical characteristics of the original problem; 2 As a result, it　is robust and highly efficient for the applications to based on　engineering numerical simulations. From this view, two kinds of　locking-free methods, developed in computational structure mechanics　and CFD, are reviewed in the paper.