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    On High-Velocity Brittleness and Ductility of Dual-Phase Steel and Some Hybrid Fiber Reinforced Plastics

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    First, the one-bar method developed by the present authors for the characterization of materials in high-velocity uniaxial tension up to breaking is stated. Second, the results of high-velocity tension ranging up to 1.4 × 103 s−1 on a dual-phase steel (shown in Table 1), pure iron A and B (shown in Table 2), and carbon/glass hybrid composites (shown in Table 3) are stated, comparing with the data of static tension. The dualphase steel shows the tendency of high-velocity ductility, differing from the pure irons. Three types of carbon fiber/glass fiber hybrid composites tested show the tendencies of high-velocity ductility with varying increasing rate according to the hybrid ratio, in contrast to the fact that carbon fiber reinforced plastic is strain-rate insensitive or high-velocity brittle.


    high-velocity tension, impact, high-velocity ductility, high-velocity brittleness, dual-phase steel, pure iron, hybrid composite, test method, evaluation

    Author Information:

    Kawata, K
    Faculty of Science and Technology, Science University of Tokyo, Yamazaki, Noda,

    Hashimoto, S
    Institute of Interdisciplinary Research, Faculty of Engineering, University of Tokyo, Tokyo,

    Takeda, N
    Japan Atomic Energy Institute, Takasaki Radiation Chemistry Establishment, Watanukicho, Takasaki,

    Sekino, S
    Fundamental Research Laboratories, Nippon Steel Corp., Kawasaki,

    Committee/Subcommittee: D30.02

    DOI: 10.1520/STP32822S