Effects of load train alignment on the fatigue failure characteristics of unidirectional graphite/epoxy composite materials

Journal Article · Sat Feb 29 23:00:00 EST 1992 · Journal of Reinforced Plastics and Composites; (United States)

DOI:https://doi.org/10.1177/073168449201100305· OSTI ID:5228191

Razvan, A; Simonds, R A; Reifsnider, K L; Stinchcomb, W W ^[1]

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1. Virginia Polytechnic Institute and State University, Blacksburg (United States)

The effect of load train alignment on the fatigue life, remaining strength, and fracture behavior of unidirectional graphite epoxy laminates was studied. Eight-ply, unidirectional graphite/epoxy specimens with a layer of release cloth embedded at the mid plane were examined. The remaining quasi-static strength of specimens containing fatigue damage was relatively unaffected by alignment; however, alignment was found to greatly influence the fatigue life of the specimens, especially at low load levels. Misalignment effects are very evident in the S-N diagram of the laminate. 10 refs.

• OSTI ID: 5228191
• Journal Information: Journal of Reinforced Plastics and Composites; (United States), Journal Name: Journal of Reinforced Plastics and Composites; (United States) Vol. 11; ISSN 0731-6844; ISSN JRPCD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALIGNMENT
CARBON FIBERS
COMPOSITE MATERIALS
EPOXIDES
FAILURES
FATIGUE
FIBERS
FRACTURE PROPERTIES
LAYERS
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS