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Experimental study of damage tolerance in pre-stressed composite panels under gas gun impact
Toso-Pentecôte, Nathalie and Johnson, Alastair and Waite, Simon (2012) Experimental study of damage tolerance in pre-stressed composite panels under gas gun impact. In: ECCM15 proceedings. ECCM15 - 15th European Conference on Composite Materials, 24-28 June 2012, Venice, Italien.
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Abstract
The paper describes a gas gun impact test programme on pre-loaded composite panels, where two impact scenarios are considered: Notch damage from 12 mm steel cube projectiles, and blunt impact damage from glass balls. The influence of preload and impact damage on residual strengths are studied. Tests show very good structural integrity for composite panels in tension and compression under notch impact damage, with no significant reduction in strength due to pre-loading. However, blunt impact tests lead to large delamination damage regions, reducing compression strength in buckling, which is intensified by compression pre-load.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Title: | Experimental study of damage tolerance in pre-stressed composite panels under gas gun impact | ||||||||
| Authors: |
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| Date: | June 2012 | ||||||||
| Journal or Publication Title: | ECCM15 proceedings | ||||||||
| Status: | Published | ||||||||
| Keywords: | damage tolerance, gas gun impact tests, composite panel | ||||||||
| Event Title: | ECCM15 - 15th European Conference on Composite Materials | ||||||||
| Event Location: | Venice, Italien | ||||||||
| Event Type: | international Conference | ||||||||
| Event Dates: | 24-28 June 2012 | ||||||||
| 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 | ||||||||
| Location: | Stuttgart | ||||||||
| Institutes and Institutions: | Institute of Structures and Design > Structural Integrity | ||||||||
| Deposited By: | Nathalie Toso | ||||||||
| Deposited On: | 23 Jul 2012 12:56 | ||||||||
| Last Modified: | 23 Jul 2012 12:56 |
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