Accession Number:

ADA010422

Title:

Laminate Tubular Specimens Subjected to Biaxial Stress States (Graphite/Epoxy).

Descriptive Note:

Technical rept.,

Corporate Author:

AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Sandhu,R. S.
• Monfort,J. B.
• Hussong,F. E.
• Zink,E. E.
• Richardson,M. D.

Report Date:

1975-03-01

Pagination or Media Count:

113.0

Abstract:

The responses of 90 degreesplus or minus 30 degrees sub s, 0 degreesplus or minus 60 degrees sub s, 0 degreesplus or minus 45 degrees sub s, and 90 degreesplus or minus 15 degrees sub s graphite epoxy Courtald HTS Fibers in Fiberite-x904 Laminates subjected to biaxial stress states are presented. These results are obtained using tubular specimens with tsub D 0.015 and Lsub D approximately 1. Additionally included are the results of tests conducted on multidirectional flat specimens, both orthotropic and off-axis. The test results are compared with those predicted theoretically. There is reasonable agreement between analytical and experimental results.

Descriptors:

• *LAMINATES
• *REINFORCED PLASTICS
• STRESSES
• COMPOSITE MATERIALS
• GRAPHITE
• CARBON FIBERS
• STRENGTH(MECHANICS)
• EPOXY RESINS

Subject Categories:

• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE