Experimental Study and Numerical Simulation of Electromagnetic Tube Expansion
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Date
2012-07-17
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Abstract
Material constitutive models are important to predict deformation behaviour of materials.
To identify parameters of constitutive models for high-strain-rate forming, appropriate
methods are needed to investigate the dynamic behaviour of materials. Electromagnetic
forming is a high-velocity and high-strain-rate forming process in which velocities of up to
300 m/s and strain rates of more than 103 s−1 can be achieved. Recently, the development
of Photon Doppler Velocimetry (PDV) enables the accurate measurement of high velocity,
and the electromagnetism module of LS-DYNA allows the reliable simulation of
electromagnetic forming. In this study, PDV and LS-DYNA were applied to investigate the
electromagnetic tube expansion of Al 6061-T6. The experimental and simulation results
are presented and discussed to study the dynamic behaviour of Al 6061-T6 and to verify
constitutive model parameters for it.
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Keywords
forming, modelling, simulation