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Modelling Impact Damage in Stiffened Composite Panels

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.

Item URL in elib:https://elib.dlr.de/52390/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Modelling Impact Damage in Stiffened Composite Panels
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:September 2007
Journal or Publication Title:ECCOMAS Thematic Conference Mechanical Response of Composites
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iDORCID Put Code
FEUP (Faculdade de Engenharia, Universidade do Porto, Portugal), UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
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 (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Toso, Dr.-Ing. Nathalie
Deposited On:27 Dec 2007
Last Modified:27 Apr 2009 14:35

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