Influence of Delamination on the Prediction of Impact Damage in Composites
Johnson, Alastair and Pentecôte, Nathalie and Körber, Hannes (2005) Influence of Delamination on the Prediction of Impact Damage in Composites. IUTAM (International Union of Theoritical and Applied Mechanics) Symposium, Multiscale Modelling of Damage and fracture Processes in Composite Materials,, 2005-05-23 - 2005-05-27, Kazimierz Dolny, Poland.
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This paper describes recent progress on materials modelling and numerical simulation of fibre reinforced composite panel structures subjected to transverse impact loads. A model of impact damage is presented which includes the contribution from delamination by introducing cohesive interfaces in the laminate model, which may degrade or fail when a delamination failure energy criterion is reached. A continuum damage mechanics model is applied to model the delamination failure at these interfaces which has been implemented in a commercial explicit finite element (FE) code. A comparison of contact load pulses and failure modes from numerical simulations and drop tower impact tests shows good agreement for the prediction of delamination damage and penetration under a range of impact conditions. Results show the importance of including delamination damage in the impact models.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Influence of Delamination on the Prediction of Impact Damage in Composites|
|In ISI Web of Science:||No|
|Keywords:||Polymer composites, impact behaviour, damage mechanics, delamination, impact simulation|
|Event Title:||IUTAM (International Union of Theoritical and Applied Mechanics) Symposium, Multiscale Modelling of Damage and fracture Processes in Composite Materials,|
|Event Location:||Kazimierz Dolny, Poland|
|Event Type:||international Conference|
|Event Dates:||2005-05-23 - 2005-05-27|
|Organizer:||Lublin University of Technology|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - 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:||Nicole Lützenburger|
|Deposited On:||01 Dec 2005|
|Last Modified:||27 Apr 2009 04:44|
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