elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

3D analysis of coupled thin-walled structural elements by means of standard boundary element formulations

Araújo, F.C. und Silva, K.I. und Degenhardt, Richard (2005) 3D analysis of coupled thin-walled structural elements by means of standard boundary element formulations. Mechanics and Materials Conference, 2005-06-01 - 2005-06-03, Louisiana, USA.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
186kB

Kurzfassung

Recently, some improvements of the generic BE/BE coupling algorithm based on Krylov's solvers, proposed by the first author of this paper and outlined in previous papers, were carried out by including discontinuous boundary elements in the BE code. As a consequence of that, traction continuity conditions, necessary for simulating edges and corners at coupling interfaces in models based on continuous boundary elements, must no longer be taken into account. Thus, the respective BE models for complex 3D regions become considerably simpler. In this paper, a general description of the main features of the algorithm is furnished. In addition, some strategies for making the analysis of moderate thin-walled structural elements by means of three-dimensional standard BE formulations possible are presented. A study of the performance of the code is also shown, where mainly computational efficiency parameters such as response precision and CPU time for assembling the system of algebraic equations and solving it are commented. Engineering systems involving thin-walled elements, possibly containing cracks, are simulated. High-precision IMSL routines (available in FORTRAN compilers) are used to study the performance of the code. Strategies for improving the conditioning of the systems are also commented.

Dokumentart:Konferenzbeitrag (Paper)
Titel:3D analysis of coupled thin-walled structural elements by means of standard boundary element formulations
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Araújo, F.C.Dept. of Civil Engineering/UFOP
Silva, K.I.Dept. of Civil Engineering/UFOP
Degenhardt, RichardNICHT SPEZIFIZIERT
Datum:Juni 2005
Stichwörter:Thin-walled structural elements, generic BE/BE coupling algorithm, discontinuous boundary elements, Krylov's solvers
Veranstaltungstitel:Mechanics and Materials Conference
Veranstaltungsort:Louisiana, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2005-06-01 - 2005-06-03
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen & Werkstoffe
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik
Hinterlegt von: Doris Ries
Hinterlegt am:07 Aug 2007
Letzte Änderung:12 Dez 2013 20:26

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.