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Johnson, Alastair and Holzapfel, Martin (2006) Influence of delamination on impact damage in composite structures. Composites Science and Technology, 66, pp. 807-815.
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Abstract
This paper describes recent progress on materials modelling and numerical simulation of fibre reinforced composite shell structures subjected to high velocity impacts. A Continuum Damage Mechanics (CDM) model for fabric reinforced composites is applied to model both in-ply damage and delamination failure during impact loading. The CDM model has been implemented in a commercial explicit finite element (FE) code in which a laminate is modelled by stacked shell elements with tied interfaces. Delamination failure is modelled by allowing the interfaces to damage and fracture when a delamination failure energy criterion is reached. The code is applied to predict the response of composite shells subjected to gas gun impact tests by a steel impactor under a range of test conditions. A comparison of structural response and failure modes from numerical simulations and impact tests shows good agreement for the prediction of delamination damage and shell penetration at higher impact energies.
| Item URL in elib: | https://elib.dlr.de/20378/ | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Article | |||||||||
| Title: | Influence of delamination on impact damage in composite structures | |||||||||
| Authors: |
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| Date: | 2006 | |||||||||
| Journal or Publication Title: | Composites Science and Technology | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | Yes | |||||||||
| Volume: | 66 | |||||||||
| Page Range: | pp. 807-815 | |||||||||
| Status: | Published | |||||||||
| Keywords: | polymer composites, impact behaviour, damage mechanics, delamination, impact mechanics | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||
| HGF - Program: | Aeronautics | |||||||||
| HGF - Program Themes: | Rotorcraft (old) | |||||||||
| DLR - Research area: | Aeronautics | |||||||||
| DLR - Program: | L RR - Rotorcraft Research | |||||||||
| DLR - Research theme (Project): | L - The Robust Rotorcraft (old) | |||||||||
| Location: | Stuttgart | |||||||||
| Institutes and Institutions: | Institute of Structures and Design > Structural Integrity | |||||||||
| Deposited By: | Johnson, Dr.phil. Alastair | |||||||||
| Deposited On: | 28 Dec 2006 | |||||||||
| Last Modified: | 27 Apr 2009 04:46 |
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