1976 · 13 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials CharacterizationMechanical Behavior Of MaterialsStructural MaterialsComposite MaterialsFiber-reinforced CompositesMechanics Of Composite MaterialsShear PropertiesStrain Rate EffectsStrength Of MaterialsComposite Mechanical PropertiesFiber-reinforced MaterialsFiber-reinforced Polymer CompositesMacromechanics Of CompositesMaterial Strain Rate EffectsShear Properties Of CompositesStrain EffectsUnidirectional Composites
An experimental investigation was conducted to determine the strain rate effects in fiber composites. Unidirectional composite specimens of boron/epoxy, graphite/epoxy, S-glass/epoxy and Kevlar/epoxy were tested to determine longitudinal, transverse and intralaminar (in-plane) shear properties. In the Longitudinal direction the Kevlar/epoxy 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 boron/epoxy and graphite/epoxy show a definite rise with strain rate.