SEDL / STP / STP864-EB / STP32822S

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

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,

Pages: 12    Published: Jan 1985

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Abstract

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.