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Benchmark Finite Element Simulations of Postbuckling Composite Stiffened Panels

Orifici, Adrian und Thomson, R. und Gunnion, A.J. und Degenhardt, Richard und Abramovich, H. und Bayandor, J. (2005) Benchmark Finite Element Simulations of Postbuckling Composite Stiffened Panels. 11th Australian International Aerospace Congress, 2005-03-13 - 2005-03-17, Melbourne, Australien.

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Kurzfassung

This paper outlines the CRC-ACS contribution to a software code benchmarking exercise as part of the European Commission Project COCOMAT investigating composite postbuckling stiffened panels. Analysis was carried out using MSC.Nastran (Nastran) solution sequences SOL 106 and SOL 600, Abaqus/Standard (Abaqus) and LS-Dyna, and compared to experimental data generated previously at the Technion, Israel and DLR, Germany. The finite element (FE) analyses generally gave very good comparison up to initial postbuckling, with excellent predictions of stiffness, and mostly accurate representations of the initial postbuckling mode shape, leading to fair omparison in deep postbuckling. Accurate modelling of boundary conditions and panel imperfections were crucial to achieve accurate results, with boundary conditions in particular presenting the most critical problem. Comparatively, SOL 106, SOL 600 and Abaqus gave almost identical results, whilst LS-Dyna produced less accurate results in postbuckling. The work in this paper will be compared to parallel FE analyses from other project partners, and conclusions will be made on the efficacy of various software codes for fuselage-representative composite structures.

Dokumentart:Konferenzbeitrag (Paper)
Titel:Benchmark Finite Element Simulations of Postbuckling Composite Stiffened Panels
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Orifici, AdrianSchool of Aerospace, Mechanical & Manufacturing Engineering, Royal Melbourne Institute of Technology,
Thomson, R.Cooperative Research Centre for Advanced Composite Structures Ltd
Gunnion, A.J.Sir Lawrence Wackett Centre for Aerospace Design Technology, Royal Melbourne
Degenhardt, RichardNICHT SPEZIFIZIERT
Abramovich, H.Faculty of Aerospace Engineering, Technion - Israel Institute of Technology
Bayandor, J.Sir Lawrence Wackett Centre for Aerospace Design Technology, Royal Melbourne
Datum:März 2005
Stichwörter:Composite, postbuckling, stiffened panels, finite element, COCOMAT
Veranstaltungstitel:11th Australian International Aerospace Congress
Veranstaltungsort:Melbourne, Australien
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2005-03-13 - 2005-03-17
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 > Strukturmechanik
Hinterlegt von: Doris Ries
Hinterlegt am:07 Aug 2007
Letzte Änderung:12 Dez 2013 20:26

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