Accession Number:

ADA231892

Title:

Effects of Notch Geometry and Moisture on Fracture Strength of Carbon/ Epoxy and Carbon/Bismaleimide Laminates

Descriptive Note:

Final rept.

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET WEAPONS LAB

Report Date:

1990-12-01

Pagination or Media Count:

45.0

Abstract:

Cross-ply panels of various ply orientations and 1 to 2-mm thickness were tested in tension with a center notch to determine the translaminar fracture toughness and in bending with no notch to determine the bulk flexural strength and modulus. Carbonepoxy panels with a variety of notch lengths and widths were subjected to laboratory air conditions before testing. Carbon bismaleimide panels with one basic notch configuration were tested in three pretest exposure conditions laboratory air a 4000-hour exposure in a controlled moisture chamber and a 4000-hour exposure in a natural tropical environment.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE