Toso-Pentecote, Nathalie and Johnson, Alastair F. and Ebrahimi, Zohreh (2007) Modelling Impact Damage in Stiffened Composite Panels. In: ECCOMAS Thematic Conference Mechanical Response of Composites. Composites 2007 - ECCOMAS Thematic Conference - Mechanical Response of Composites, 2007-09-12 - 2007-09-14, Porto, Portugal.
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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 impact loads. A Continuum Damage Mechanics (CDM) model for fibre 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 cohesive interfaces which fracture when a delamination failure energy criterion is reached. The code is applied to predict the response of stringer stiffened composite panels subjected to gas gun impact tests by steel impactors 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.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Modelling Impact Damage in Stiffened Composite Panels|
|Journal or Publication Title:||ECCOMAS Thematic Conference Mechanical Response of Composites|
|In ISI Web of Science:||No|
|Keywords:||composite damage, high velocity impact, HVI, delamination, stiffened composite plates, impact damage models|
|Event Title:||Composites 2007 - ECCOMAS Thematic Conference - Mechanical Response of Composites|
|Event Location:||Porto, Portugal|
|Event Type:||international Conference|
|Event Dates:||2007-09-12 - 2007-09-14|
|Organizer:||Faculdade de Engenharia, Universidade do Porto, Portugal|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Structures & Materials|
|Institutes and Institutions:||Institute of Structures and Design > Structural Integrity|
|Deposited By:||Nathalie Toso|
|Deposited On:||27 Dec 2007|
|Last Modified:||27 Apr 2009 14:35|
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