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Machining and Machine-tools by J Paulo Davim

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8

Cam-driven electromagnetic mechanical testing machine

C.M.A. Silva1, P.A.R. Rosa1 and P.A.F. Martins1,     1Instituto Superior Tecnico, Technical University of Lisbon, Av. Rovisco Pais 1049-001 Lisboa, Portugal.

Abstract:

This chapter describes an innovative testing machine for the mechanical characterization of materials under high rates of loading. The machine consists of an electromagnetic actuator, a fixed housing containing two flat compression platens, a translating cam and a follower. The electromagnetic actuator enables high strain rates to be reached with very precise control of the impact velocity and of the energy transmitted to the translating cam. The cam profile enables compression testing to be performed under the strain ...

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