| Metal Matrix Composite(MMC) Layered Armour System |
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Minhyung Lee, Sang-Won Park, Ilguk Jo |
1School of Mechanical & Aeronautical Engineering, Sejong University
2Functional Composite Department, Korea Institute of Materials Science |
| 금속복합판재 적용 다층 구조 방호성능 평가 |
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이민형, 박상원, 조일국 |
1세종대학교 기계항공우주공학부
2한국재료연구소 기능복학재료연구실 |
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| Abstract |
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Analysis has been performed for the penetration of a long-rod into MMC/Ceramic layered armour system with several shot test and a series of simulations. Two types of MMC plate have been fabricated by a liquid pressing method; A356/45%vol.%SiCp with a uniform distribution of SiC particle and Al7075/45%vol.B4Cp with B4C particle. The mechanical properties were measured with the high-speed split Hopkins bar test, hardness test and compression test. The popular Simplified Johnson-Cook model was adopted to represent the material characteristics for FEM simulations. The performance of the MMC applied armour system has been made by comparing with the semi-infinite mild steel target using the depth of penetration(DOP). The results show that placing ceramic front layer provides a certain gain in protection, and that placing another ductile front layer provides a further gain. The application of MMC is found to be attractive. |
| Key Words:
Armour, MMC, DOP, Long-rod |
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