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In this study, the local fracture behavior and damage state near the crack tip in a particulate composite material were investigated through the use of precracked sheet specimens. The specimens were subjected to a simple incremental strain history at room temperature. During the test, a high-energy real-time X-ray system was used to record the X-ray data and the fracture process near the crack-tip region. The experimental data were analyzed and the results are discussed.
particulate composites, damage, crack opening, failure process zone, fracture mechanics, fatigue (materials)
Project manager, Phillips Laboratory (AFSC), Edwards Air Force Base, CA