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Title: On the dynamic tensile strength of Zirconium
Authors: Appleby-Thomas, GJ
Hameed, A
Vignjevic, R
Hazell, PJ
Painter, J
Cademartori, S
Keywords: Dynamic behaviour;Zirconium;Plate-impact experiments
Issue Date: 2014
Publisher: Institute of Physics Publishing
Citation: Journal of Physics: Conference Series, 500 (PART 11): 2014
Abstract: Despite its fundamental nature, the process of dynamic tensile failure (spall) is poorly understood. Spall initiation via cracks, voids, etc, before subsequent coalesce, is known to be highly microstructure-dependant. In particular, the availability of slip planes and other methods of plastic deformation controls the onset (or lack thereof) of spall. While studies have been undertaken into the spall response of BCC and FCC materials, less attention has paid to the spall response of highly anisotropic HCP materials. Here the dynamic behaviour of zirconium is investigated via plate-impact experiments, with the aim of building on an ongoing in-house body of work investigating these highly complex materials. In particular, in this paper the effect of impact stress on spall in a commercially sourced Zr rod is considered, with apparent strain-rate softening highlighted.
ISSN: 1742-6588
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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