Compressive-shear behavior and self-sharpening of bulk metallic glasses and their composite materials
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摘要: 块体金属玻璃及其复合材料以其优异的力学、物理和化学性能, 正成为国内外科技和工程领域的研究热点. 特别是金属玻璃复合材料具有高剪切敏感性和剪切``自锐''特性, 使其有可能成为新型穿甲弹芯材料, 因而具有重要的军事意义. 本文综述了针对块体金属玻璃及其复合材料的压缩剪切变形和断裂特性及高速冲击、侵彻/穿甲过程中剪切``自锐''行为等方面的研究进展, 包括相关实验研究、理论分析及有限元模拟等, 最后给出未来相关工作的一些建议.
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关键词:
- 侵彻/穿甲
Abstract: For their excellent mechanical, physical and chemic performance, metallic glasses and their composite materials is becoming as an active research focus now. Especially, metallic glass matrix composite may be employed as the material of kinetic enrgy penetrator for its intense shear banding sensitivity. The present paper introduces the research advance up-to-date on the compressive shear characteristics and self-sharpening behavior of metallic glasses and their composite materials during the high-speed impact. The related experimental research, theoretical analysis and FEM simulations are reviewed, and also some future research proposals are made.-
Key words:
- penetration/perforation
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