Strain Rate Effects on Mechanical Properties of Fiber Composites. Part 3.
ILLINOIS INST OF TECH CHICAGO
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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
- Laminates and Composite Materials