Low velocity ballistic impact behaviour of the Al-matrix composites

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2002

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Kaya, Seyfi

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In this study, a drop-weight set-up was used for low velocity ballistic behaviour of various materials. The test includes the free fall of 5 kg hammer from a height of 4 m and impacting the specimen with a 8 mm diameter punching rod. The criteria in the test is penetration/no penetration as well as the failure mechanism in the tested specimen. The test materials were selected as Ck67 steel, pure Al, and AI-B4C composites. The Ck67 steel plate was quenched and tempered to yield UTS of 800 MPa and higher. Al-10vol%B4C and Al-30vol%B4C composites were produced by hot pressing under Nitrogen atmosphere. iiiBoth pure Al and AI-B4C composites were failed by total penetration when impacted by the hammer. In the case of Ck67 steel, the plates could not be penetrated, when their UTS were 827 MPa or higher

Subject Keywords

Drop- weight test, Low velocity ballistic, Al matrix B4C composites, Hot pressing, Powder metallurgy

URI

https://hdl.handle.net/11511/12238

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

S. Kaya, “Low velocity ballistic impact behaviour of the Al-matrix composites,” Middle East Technical University, 2002.