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范学领.强冲击载荷下Ti-Al3Ti 金属间化合物复合材料失效机理研究[J].稀有金属材料与工程(英文),2018,47(9):2615~2620.[Xueling Fan.Failure mechanisms of Ti-Al3Ti metal-intermetallic laminate composites under high-speed impact[J].Rare Metal Materials and Engineering,2018,47(9):2615~2620.]
Failure mechanisms of Ti-Al3Ti metal-intermetallic laminate composites under high-speed impact
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Received:February 24, 2017  Revised:April 05, 2017
DOI:
Key words: metal-intermetallic laminate composites  finite element method  high-speed impact  failure
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目),国家重点基础研究发展计划(973计划)
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Xueling Fan  
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Abstract:
      In this work, the penetration process of Ti-Al3Ti metal-intermetallic laminate composites impacted by a projectile was numerically investigated. The ballistic performance, stress distribution, failure and energy absorbing mechanisms of Ti-Al3Ti metal-intermetallic laminate composites under high-speed impact were examined in detail. The results shown that Ti-Al3Ti metal-intermetallic laminate composites under high-speed impact was mostly under tensile stress, since the compressive wave was reflected back as a tensile wave. During projectile penetration, transverse, inclined, and vertical cracks formed in the Al3Ti phase, which can dramatically absorb the kinetic energy of projectile.