Fatigue Behavior of Graphite Composites
Abstract
The objective of this report is to improve the material performance of a graphite/epoxy prepreg composite with particular relevence to its fatigue performance. Fatigue strength and resistance to fatigue damage of Modmor II/ Narmco 5206 composite were improved by interleaving the composite prepreg laminate with glass scrim cloth. Cantilever beam specimens of two fiber orientations were tested under uniform stress fatigue and sequential block loading. Flexural strength studies and the effects of ambient aging of composites on their elevated temperature properties are reported. Besides ambient aging the investigation also included accelerated aging tests on laminates of two different fiber orientations with and without interleaving of scrim cloth. Improvement in the mechanical behavior of graphite/epoxy prepreg composite was obtained with the addition of glass scrim cloth.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1972
- Accession Number
- AD0741580
Entities
People
- K. E. Hofer Jr.
- P. N. Rao
Organizations
- IIT Research Institute