Johnson, A. (2001) Numerical Prediction of Impact Damage in Composite Structures. Workshop on "Structural Integrity of Composite Materials and Structures", Capri, Italien, 20-25 Mai 2001.
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Kurzfassung
This paper describes recent progress on materials modelling and numerical simulation of the impact response of fibre reinforced composite structures. A continuum damage mechanics model for fabric reinforced composites is developed as a framework within which both in-ply and delamination failure may be modelled during impact loading. Damage evolution equations are derived and appropriate materials parameters determined from experiments. The model for in-plane failure has been implemented in a commercial explicit finite element code, and new techniques are used to model the laminate as a stack of shell elements tied via contact interface conditions. The code is applied to predict the response of carbin fabric reinforced epoxy plates impacted at different velocities by a steel impactor. A comparison of structural response and failure modes from numerical simulations and impact tests is given which shows a good agreement for the prediction of delamination damage at low impact energies and fracture and penetration at higher impact energies.
elib-URL des Eintrags: | https://elib.dlr.de/14878/ | ||||||||
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Dokumentart: | Konferenzbeitrag (Paper) | ||||||||
Zusätzliche Informationen: | LIDO-Berichtsjahr=2002, | ||||||||
Titel: | Numerical Prediction of Impact Damage in Composite Structures | ||||||||
Autoren: |
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Datum: | 2001 | ||||||||
Open Access: | Nein | ||||||||
Gold Open Access: | Nein | ||||||||
In SCOPUS: | Nein | ||||||||
In ISI Web of Science: | Nein | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | damage mechanics, numerical simulation, FE analysis, composites, aircraft | ||||||||
Veranstaltungstitel: | Workshop on "Structural Integrity of Composite Materials and Structures", Capri, Italien, 20-25 Mai 2001 | ||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||
HGF - Programm: | Luftfahrt | ||||||||
HGF - Programmthema: | keine Zuordnung | ||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||
DLR - Forschungsgebiet: | L ST - Starrflüglertechnologien | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||||
Standort: | Stuttgart | ||||||||
Institute & Einrichtungen: | Institut für Bauweisen- und Konstruktionsforschung | ||||||||
Hinterlegt von: | DLR-Beauftragter, elib | ||||||||
Hinterlegt am: | 16 Sep 2005 | ||||||||
Letzte Änderung: | 14 Jan 2010 22:25 |
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