International Journal of applied mathematics and computer science

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Paper details

Number 2 - June 1996
Volume 6 - 1996

A simple method for improving the accuracy and convergence of FEM computations

Antoni Żochowski

In the paper, a simple method for improving the convergence rate and accuracy of finite-element computations is presented. It is based on a discrete formulation of the problems on certain types of superelements and uses the formal-series technique. It makes possible a uniform treatment of problems with corner singularities and an improvement of accuracy in ordinary FEM computations, without any increase in the dimensionality of the problem.