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Fast Simulation of Static Strength and Dynamic Impact Behaviour of Composite Fuselage Structures

Baaran, J. and Juhasz, J. and Goetting, H.-C. and Hillger, Wolfgang (2002) Fast Simulation of Static Strength and Dynamic Impact Behaviour of Composite Fuselage Structures. In: CD: "Schwarzer Rumpf" CFRP for Future Aircraft Fuselage Structures, pp. 1-7. DLR. Schwarzer Rumpf Workshop, Braunschweig, 2002.

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Extending the works of Puck and Cunzte, et al., the so-called "Simple Parabolic Criterion" (SPC) for quasi-static loads has been adapted to orthogonal 3D fibre reinforced plastics consisting of unidirectional layers with high in_plane fibre density and fibre reinforcements orthogonal to the layers with a significant lower fibre density. It is shown, that by fitting the strength parameters to test results, the complete strength spectrum of an additionally orthogonal reinforced unidirectional layer can be simulated with the modified SPC. Using 2-D shell and 1-D beam elements the tool CODAC (Composite Damage Tolerance Analysis Code) is capable of the fast impact simulation of composite stringer-stiffened panels. Contact is modelled with the Hertzian contact law. Several stress based fibre, inter-fibre and delamination failure criteria can be used to predict failure due to low-energy impact, which often is invisible to the naked eye. Good correlation of experimental and simulation results is found for the transient impact response as well as for the delamination damage due to impact loading.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2003, monograph_id=05,
Title:Fast Simulation of Static Strength and Dynamic Impact Behaviour of Composite Fuselage Structures
AuthorsInstitution or Email of Authors
Hillger, WolfgangUNSPECIFIED
Journal or Publication Title:CD: "Schwarzer Rumpf" CFRP for Future Aircraft Fuselage Structures
Page Range:pp. 1-7
Deutsches Zentrum für Luft- u. Raumfahrt Forschungszentrum Karlsruhe, UNSPECIFIED
Event Title:Schwarzer Rumpf Workshop, Braunschweig, 2002
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Institut für Strukturmechanik
Deposited By: Sibylle Wolff
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 16:25

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