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    Investigating the Near-Tip Fracture Behavior and Damage Characteristics in a Particulate Composite Material

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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)

    Author Information:

    Liu, C-T
    Project manager, Phillips Laboratory (AFSC), Edwards Air Force Base, CA

    Committee/Subcommittee: E08.09

    DOI: 10.1520/STP24295S