Investigation of First Ply Failure in Graphite/Epoxy Laminates Subjected to Biaxial Static and Fatigue Loadings

Investigation of First Ply Failure in Graphite/Epoxy Laminates Subjected to Biaxial Static and Fatigue Loadings

Thin graphite/epoxy (0/90)s and (+ or - 45)s tubes were loaded in various combinations of tension, torsion, and internal pressure, and physical evidence of first ply failure (FPF) was found using replication techniques. The FPF envelopes so identified were compared with ultimate strength envelopes,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Francis,Philip H, Walrath,David E, Weed,Donald N
Format: Report
Sprache:eng
Schlagworte:
BIAXIAL STRESSES
COMPOSITE MATERIALS
EPOXY RESINS
FAILURE(MECHANICS)
FATIGUE(MECHANICS)
First ply failure
FPF(First ply failure)
GRAPHITE
LAMINATES
Laminates and Composite Materials
LOADS(FORCES)
MECHANICAL PROPERTIES
TENSILE PROPERTIES
TORSION
TUBES
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Thin graphite/epoxy (0/90)s and (+ or - 45)s tubes were loaded in various combinations of tension, torsion, and internal pressure, and physical evidence of first ply failure (FPF) was found using replication techniques. The FPF envelopes so identified were compared with ultimate strength envelopes, and with lamination theory predictions using a maximum strain criterion. Preliminary experiments were performed to examine the consequences of fatigue cycling inside of, and across the FPF envelope. (Author)