MESH r-ADAPTATION FOR UNILATERAL CONTACT PROBLEMS†
نویسندگان
چکیده
The aim of this paper is to present an algorithm of topology preserving mesh adaptation. It is based on a node movement rather than on mesh classical refinement/coarsening techniques. The choice of this so-called r-adaptation strategy is motivated at least by two reasons: node movement techniques preserve the matrix structure and are then well suited for large-scale computations, e.g. three-dimensional and/or nonlinear cases. Moreover, they are well adapted for differentiation with respect to node positions in order to calculate sensitivities like, for instance, in shape optimization.
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