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Adaptive mesh refinement processes for finite element solutions
Author(s) -
Rheinboldt Werner C.
Publication year - 1981
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620170502
Subject(s) - finite element method , mathematical optimization , convergence (economics) , sequence (biology) , computer science , adaptive mesh refinement , process (computing) , pareto optimal , algorithm , mathematics , multi objective optimization , engineering , structural engineering , computational science , biology , economics , genetics , economic growth , operating system
The nature of adaptive processes is reviewed using as an example a specific finite element problem. Several possible formulations for the objective of mesh refinement processes are given. For the most natural of these objectives the A *‐algorithms of artificial intelligence turn out to provide a solution process which is known to be optimal in a certain sense. But practically, there is insufficient information and these processes tend to be inefficient. On the other hand, if the objective is replaced by a strictly local objective based on Pareto‐optimality, the error estimates of the resulting mesh sequence are shown to exhibit the order of convergence which is known to be best possible for the type of elements used.