Accession Number:

ADA065445

Title:

Behaviour and Benefits of Intimately Mixed Hybrid Composites.

Descriptive Note:

Technical rept.,

Corporate Author:

PROPELLANTS EXPOSIVES AND ROCKET MOTOR ESTABLISHMENT WALTHAM ABBEY (ENGLAND)

Personal Author(s):

Report Date:

1978-11-01

Pagination or Media Count:

46.0

Abstract:

Starting from the constant strain theory of hybrid tensile strength, which only describes a lower bound for most hybrid composites, this report develops arguments to show how, in finely-mixed unidirectional hybrids the reinforcing strength of a set of fibres will assume higher values depending on their surroundings. In the case of hybrids of high modulus HMS carbon fibre, three characteristic levels of strength are predicted and indeed observed in the experiments reported here. These levels are, the mean fibre strength, the bundle strength referred to short guage length, and the brittle strength which is also observed in all-HMS composites. Statistical co-ordination solutions are developed which predict the compositions of the average-bundle and the bundle-brittle transitions and also the hybrid tensile strength. Author-PL.

Subject Categories:

  • Laminates and Composite Materials
  • Textiles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE