Engineering Transactions, 32, 2, pp. 135-143, 1984

The Most Favourable Selection of the Discrete Model in Fem

P. Konderla
Technical University of Warsaw, Wrocław

A theorem and proof of the best, in the energetic sense, selection of a discrete model FEM for the linear elasticity problem were presented in the paper. It was proved that the best approxima­tion is obtained if the ratio of the unit elastic strain energy to the density of nodes has a constant value. Proof of the theorem was verified on numerical examples.
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