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http://dx.doi.org/10.9766/KIMST.2017.20.6.752

Metal Matrix Composite(MMC) Layered Armour System  

Lee, Minhyung (School of Mechanical & Aeronautical Engineering, Sejong University)
Park, Sang-Won (School of Mechanical & Aeronautical Engineering, Sejong University)
Jo, Ilguk (Functional Composite Department, Korea Institute of Materials Science)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.20, no.6, 2017 , pp. 752-757 More about this Journal
Abstract
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.
Keywords
Armour; MMC; DOP; Long-rod;
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