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Damage tolerance of pre-stressed composite panels under gas gun impact

Johnson, Alastair and Toso-Pentecote, Nathalie (2011) Damage tolerance of pre-stressed composite panels under gas gun impact. Deformation and Fracture of Composites DFC11, 13-15 April 2011, Cambridge, UK.

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Abstract

The paper describes a damage tolerance study carried out for EASA on the ‘Significance of Load upon Impact Behaviour of Composite Structure’ in the LIBCOS project. Currently impact tests on aircraft structures are carried out on test specimens supported in a test fixture in a stress-free condition. However aircraft fuselage and wing structures in flight are subjected to quasi-static loads up to design limit load, hence foreign object impacts usually occur on preloaded structures which may influence damage tolerance. LIBCOS studies experimentally the effect of preloads on impact damage in carbon/epoxy structures, and on subsequent residual strengths of damaged structures.

Document Type:Conference or Workshop Item (Speech)
Title:Damage tolerance of pre-stressed composite panels under gas gun impact
Authors:
AuthorsInstitution or Email of Authors
Johnson, AlastairDLR
Toso-Pentecote, NathalieDLR
Date:April 2011
Keywords:damage tolerance, pre-stressed composite panel, gas gun test, residual strength
Event Title:Deformation and Fracture of Composites DFC11
Event Location:Cambridge, UK
Event Type:international Conference
Event Dates:13-15 April 2011
HGF - Research field:Aeronautics, Space and Transport
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
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Nathalie Toso
Deposited On:06 Dec 2011 23:31
Last Modified:06 Dec 2011 23:31

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