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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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.
|Title:||Influence of delamination on impact damage in composite structures|
|Journal or Publication Title:||Composites Science and Technology|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 807-815|
|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|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L RR - Rotorcraft Research|
|DLR - Research theme (Project):||L - The Robust Rotorcraft|
|Institutes and Institutions:||Institute of Structures and Design > Structural Integrity|
|Deposited By:||Dr.phil. Alastair Johnson|
|Deposited On:||28 Dec 2006|
|Last Modified:||27 Apr 2009 04:46|
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