Accession Number:

ADA305424

Title:

Strain Rate Effects on Mechanical Properties of Fiber Composites. Part 3.

Descriptive Note:

Contractor rept.,

Corporate Author:

ILLINOIS INST OF TECH CHICAGO

Personal Author(s):

Report Date:

1976-06-01

Pagination or Media Count:

49.0

Abstract:

An experimental investigation was conducted to determine the strain rate effects in fiber composites. Unidirectional composite specimens of boronepoxy, graphite epoxy, S-glassepoxy and Kevlarepoxy were tested at strain rates of up to 27 epsilonsec to determine longitudinal, transverse and intralaminar in-plane shear properties. Ir the longitudinal direction the Kevlarepoxy shows a definite increase in both modulus and strength with strain rate. In the transverse direction, a general trend toward higher strength with strain rate is noticed. The intralaminar shear moduli and strengths of boronepoxy and graphiteepoxy show a definite rise with strain rate. MM

Subject Categories:

  • Laminates and Composite Materials
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE