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Status of FE simulation methods for certification of composite structures under high velocity impact

Johnson, Alastair and Toso-Pentecote, Nathalie (2009) Status of FE simulation methods for certification of composite structures under high velocity impact. In: Conference Proceedings. IKUS6 (&th International KRASH Users'Seminar), 15.-17- Juni 2009, Stuttgart, Deutschland.

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Abstract

The paper discusses FE simulation methods in use for predicting impact damage in advanced composite structures. Before these simulation tools are accepted by the industry for design and certification of composite aircraft structures, composites damage models have to be developed, implemented in commercial FE codes and validation studies at specimen and substructure level have to be performed. For vulnerability analysis the DLR uses meso-scale composites ply damage models with an energy based delamination failure criteria in explicit FE codes to study damage progression in composite structures under impact. The methods developed are summarised in the paper and applied to predict impact damage in stiffened aircraft panels from hard debris impact and tyre rubber fragments. Issues concerned with use of such computational methods for certification by analysis are discussed.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Status of FE simulation methods for certification of composite structures under high velocity impact
Authors:
AuthorsInstitution or Email of Authors
Johnson, AlastairDLR
Toso-Pentecote, NathalieDLR
Date:June 2009
Journal or Publication Title:Conference Proceedings
Status:Published
Keywords:Composite damage, delamination models, FE code developments, stiffened aircraft panels, simulation of impact damage, certification by analysis
Event Title:IKUS6 (&th International KRASH Users'Seminar)
Event Location:Stuttgart, Deutschland
Event Type:international Conference
Event Dates:15.-17- Juni 2009
Organizer:Institut für Bauweisen- und Konstruktionsforschung
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
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Nathalie Toso
Deposited On:04 Dec 2009 17:14
Last Modified:04 Dec 2009 17:14

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