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Influence of voids and impact damage on the fatigue behaviour of large scale composites
Other Titles
Einfluss von Poren und Schlagschäden auf das Ermüdungsverhalten von Großstrukturen
Publikationstyp
Journal Article
Date Issued
2016-11-01
Sprache
English
TORE-URI
Volume
47
Issue
11
Start Page
1058
End Page
1071
Citation
Materialwissenschaft und Werkstofftechnik 11 (47): 1058-1071 (2016-11-01)
Publisher DOI
Scopus ID
Defects in laminated composite structures like voids and impact damages have a major influence on the fatigue behaviour. These defects may occur in the manufacturing process and during lifetime of composite parts and lead to matrix cracks within single layers and to delaminations between adjacent layers with different fibre orientations. We investigated the relationship between voids and impact damage and fatigue lifetime. Specimens made of a glass fibre non-crimp fabric were produced by vacuum assisted resin infusion. Voids were introduced by air-bypass simulating a leakage during the vacuum assisted resin infusion-process. Impact damage was induced using a canon. Stringer-panels with the basic dimensions of 1000 mm × 1200 mm and a radius of 1980 mm were tested under multiaxial load situations in a hexapod test rig and a tension/compression-shear test rig.
Subjects
glass fibre composite
impact
Large scale composite
multiaxial fatigue
voids