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An instrumented tensile impact test system with partial loading capabilities has been developed and tested. Hardware development included a low mass gripping system for tensile impact and a vibration-damped base and load cell. A standard pendulum type impact testing machine was modified for use. The rate sensitive material properties of unidirectional glass/epoxy and graphite/epoxy composite materials were investigated. The micromechanics of fracture within the composite caused by impact were studied, using partially loaded impact test specimens and scanning electron microscopy.
Texstar Plastics, Grand Prairie, TX
Professor of mechanical engineeringMember of ASTM, Composite Materials Research Group, University of Wyoming, Laramie, WY
Stock #: JTE10234J