Problem of Improving the Accuracy of Solutions of Elastoplastic Problems by the Finite Element Method.

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Umanskii, S.E.
Kharchenko, V.V.
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Problemy Prochnosti | 1981年 / 4卷
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Various methods based on results of the finite element calculation of intricate parts are compared relative to their role in increasing the stress distribution accuracy. Solution of four model problems shows the advantages of the iteration method proposed by Loubignac which makes it possible to obtain a piecewise linear, continuous stress distribution using ordinary triangular elements. The method in question is generalized for the case of piecewise homogeneous bodies and for elastoplastic deformation.
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