Optimization of Finite Element Solutions

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Report Number: AFFDL TR 71-160 p. 423-446
Author(s): de Arantes e Oliveira, E. R.
Corporate Author(s): Technical University of Lisbon
Date of Publication: 1973-12
Pages: 24
DoD Task:
Identifier: This paper is part of a conference proceedings. See AD0785968

The minimization of the discretization error corresponding to a given total number of nodes is considered for each one of the steps which may be considered in the application of the f. e. m. In what concerns the choice of the type of the element, the rule must be respected of the accuracy of the stresses being consistent with the accuracy of the displacements or tractions. In what concerns the topology of the mesh, it is shown that the best topology depends on the orientation of the mesh with respect to the isoenergetic lines. The problem of the best allocation of the nodes is also considered.

Provenance: Bombardier/Aero

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