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Characterising performance of automotive materials at high strain rate for improved crash design

Wood, Paul and Schley, C.A. and McGregor, I and Dutton, T. and Bloomfield, M. and Bardenheier, R. (2006) Characterising performance of automotive materials at high strain rate for improved crash design. In: EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loadin, 2006-09-11 - 2006-09-15.

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Abstract

This paper investigates the effect of specimen geometry on the measured dynamic mechanical properties of a high strength sheet steel material derived from tensile testing at 15 m/s on a high speed servo-hydraulic test machine. In this study, stochastic modelling is used extensively to support experimental investigations. The current objective is to develop a tensile specimen design and test procedure, which more closely matches the capabilities of the new IARC high speed test machine, to enable accurate and precise measurement of tensile mechanical properties over a range of strain rates up to 600 s - 1.