1. Fatigue delamination growth of carbon and glass reinforced fiber metal laminates in fracture mode II.
- Author
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Bieniaś, Jarosław and Dadej, Konrad
- Subjects
- *
METAL fibers , *METAL fractures , *GLASS fibers , *LAMINATED materials , *DELAMINATION of composite materials - Abstract
• Fatigue delamination growth by End Notch Flexure tests in mode II. • Delamination growth in glass and carbon reinforced fiber metal laminates. • Presence of compressive stresses in the region of force application. • Retardation of fatigue delamination growth caused by compressive stresses. • Modified Paris curves db/dN vs. G II(max) for Al/CFRP and Al/GFRP interfaces. Fatigue delamination growth (FDG) rate was investigated in composite laminates with aluminium and carbon/glass fibers. An End Notch Flexure test was used to determine compliance-calibration as well as fatigue and quasi-static interlaminar fracture. Experimental tests results suggest, that fatigue delamination threshold in a metal-composite interface is governed by the epoxy matrix, while the FDG rate is governed by the fibers/matrix cohesion. Deceleration of delamination growth was observed when delamination reached a central point of the specimen. Generally, laminates reinforced by glass fibers are more resistant for delamination growth than reinforced by carbon fibers. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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