Face-based Selection of Corners in 3D Substructuring

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00201957" target="_blank" >RIV/68407700:21220/12:00201957 - isvavai.cz</a>
Alternative codes found
RIV/67985840:_____/12:00379744
Result on the web
<a href="http://dx.doi.org/10.1016/j.matcom.2011.06.007" target="_blank" >http://dx.doi.org/10.1016/j.matcom.2011.06.007</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matcom.2011.06.007" target="_blank" >10.1016/j.matcom.2011.06.007</a>

Result language
angličtina
Original language name
Face-based Selection of Corners in 3D Substructuring
Original language description
In most recent substructuring methods, a fundamental role is played by the coarse space. For some of these methods (e.g. BDDC and FETI-DP), its definition relies on a 'minimal' set of coarse nodes (sometimes called corners) which assures invertibility oflocal subdomain problems and also of the global coarse problem. This basic set is typically enhanced by enforcing continuity of functions at some generalized degrees of freedom, such as average values on edges or faces of subdomains. We revisit existingalgorithms for selection of corners. The main contribution of this paper consists of proposing a new heuristic algorithm for this purpose. Considering faces as the basic building blocks of the interface, inherent parallelism, and better robustness withrespect to disconnected subdomains are among features of the new technique. The advantages of the presented algorithm in comparison to some earlier approaches are demonstrated on three engineering problems of structural analysis solved by
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BA - General mathematics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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