Accession Number:

ADA001612

Title:

Fracture of Graphite Fiber Reinforced Composites.

Descriptive Note:

Final technical rept. 15 May 74-15 Nov 74,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF CIVIL ENGINEERING

Personal Author(s):

Report Date:

1974-06-01

Pagination or Media Count:

169.0

Abstract:

The fracture of thin prenotched graphite epoxy laminates has been studied analytically and experimentally. Analytical solutions were obtained for the three- dimensional stress field at the tip of both a sharp crack and a crack with a subcritical damage zone at its tip. The stress distri- butions and mechanisms of stress transfer are discussed for the two solutions, both of which model a 900090 cross-plied laminate. The extension of crack-tip damage zones and the final fracture characteristics of epoxy laminates of several ply configurations were tested. Author, modified-PL

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE