The Interlaminar Fracture Toughness of Woven Graphite/Epoxy Composites

The Interlaminar Fracture Toughness of Woven Graphite/Epoxy Composites

The interlaminar fracture toughness of graphite/ epoxy woven composites was determined as a function of stacking sequence, thickness, and weave pattern. Plain, oxford, 5-harness satin, and 8-harness satin weave patterns of T300/934 fabric were evaluated by the double cantilever beam test. The fabric...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Funk, Joan G, Deaton, Jerry W
Format: Report
Sprache:eng
Schlagworte:
CANTILEVER BEAMS
FABRICS
FIBER REINFORCED COMPOSITES
FRACTURE(MECHANICS)
GRAPHITE EPOXY COMPOSITES
IMPACT TESTS
LAMINATES
Laminates and Composite Materials
ORIENTATION(DIRECTION)
RUBBER
STRAIN RATE
THERMOPLASTIC RESINS
TOUGHNESS
WEAVING
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Zusammenfassung:The interlaminar fracture toughness of graphite/ epoxy woven composites was determined as a function of stacking sequence, thickness, and weave pattern. Plain, oxford, 5-harness satin, and 8-harness satin weave patterns of T300/934 fabric were evaluated by the double cantilever beam test. The fabric had a mode I critical-strain-energy release rate (G sub Ic) ranging from two to eight times greater than that of a 0 deg unidirectional T300/934 tape material. The interlaminar fracture toughness of a particular weave pattern was dependent on whether the stacking sequence was symmetric or asymmetric and, in some cases, on the fabric orientation.