Orifici, Adrian and Thomson, R. and Gunnion, A.J. and Degenhardt, Richard and Abramovich, H. and 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.
![]()
|
PDF
1MB |
Abstract
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.
Item URL in elib: | https://elib.dlr.de/50553/ | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Paper) | |||||||||||||||||||||
Title: | Benchmark Finite Element Simulations of Postbuckling Composite Stiffened Panels | |||||||||||||||||||||
Authors: |
| |||||||||||||||||||||
Date: | March 2005 | |||||||||||||||||||||
Open Access: | Yes | |||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||
In SCOPUS: | No | |||||||||||||||||||||
In ISI Web of Science: | No | |||||||||||||||||||||
Keywords: | Composite, postbuckling, stiffened panels, finite element, COCOMAT | |||||||||||||||||||||
Event Title: | 11th Australian International Aerospace Congress | |||||||||||||||||||||
Event Location: | Melbourne, Australien | |||||||||||||||||||||
Event Type: | international Conference | |||||||||||||||||||||
Event Dates: | 2005-03-13 - 2005-03-17 | |||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
HGF - Program: | Aeronautics | |||||||||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | |||||||||||||||||||||
DLR - Research area: | Aeronautics | |||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | |||||||||||||||||||||
DLR - Research theme (Project): | L - Structures & Materials (old) | |||||||||||||||||||||
Location: | Braunschweig | |||||||||||||||||||||
Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Structural Mechanics | |||||||||||||||||||||
Deposited By: | Ries, Doris | |||||||||||||||||||||
Deposited On: | 07 Aug 2007 | |||||||||||||||||||||
Last Modified: | 31 Jul 2019 19:20 |
Repository Staff Only: item control page