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1993
Conference Paper
Titel
Correlation between material properties and damage tolerance behaviour of composite structures
Alternative
Korrelation zwischen Werkstoffeigenschaften und Schadenstoleranz-Verhalten von Faserverbundkonstruktionen
Abstract
The improved performance of toughened composites was demonstrated by Interlaminar Fracture Energy (IFE)- and Compression After Impact (CAI)-tests with generic specimens (coupons), and the transfer of these improvements to the composite structure by CAI-, Fatigue After Impact (FAI)- and Delamation Growth (DG)-tests with specimens related to a horizontal tail structure. The work includes the development of a special testing technique which was required for the derivation of DG-curves (dA/dN=G total), and finite element calculations of strain energy release rate distributions along the delamination front.
Language
English
Tags
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composite structure
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compression test
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crack propagation data
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damage
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delamination
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Druckversuch
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fatigue strength
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finite element analysis
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Finite-Elemente-Methode (FEM)
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Formänderungsarbeit
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impact test
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material property
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Rißfortschrittsdaten
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Schädigung
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Schlagversuch
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Schwingfestigkeit
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strain energy
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Verbundkonstruktion
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Werkstoffeigenschaft