Influence of strain rate and phase history on the spall failure of single and polycrystal tin
Abstract
Spall occurs when materials are subjected to shock impacts; under this loading, the material properties can be modified through microstructural changes and phase transitions. The effect of these changes on subsequent spall has been under-explored. The anisotropy of tin’s ambient crystal structure and the accessibility of the β → γ solid–solid phase transition under shock loading mean that tin offers a rich domain in which to study spall failure. Through testing single-crystal and polycrystal samples shocked above and below this transition, the effects of these variables on the deformation behavior of tin can be determined. Although no orientation dependent spall behavior is observed, unusual strain-rate-dependent behavior is observed, indicating likely mechanisms for the high-rate behavior of tin.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (10)
Jasper G. Threadingham
Department of Engineering Science, University of Oxford 1 , Oxford OX1 3PJ,
Xuefei Liang
Department of Engineering Science, University of Oxford 1 , Oxford OX1 3PJ,
Edward Leggett
Department of Engineering Science, University of Oxford 1 , Oxford OX1 3PJ,
Liam C. Smith
Department of Engineering Science, University of Oxford 1 , Oxford OX1 3PJ,
Jeremy C. F. Millett
AWE 2 , Aldermaston, Reading RG7 4PR,
Glenn Whiteman
AWE 2 , Aldermaston, Reading RG7 4PR,
Viviane Peçanha-Antonio
Department of Physics, University of Oxford 3 , Oxford OX1 3PU,
Andrew T. Boothroyd
David J. Chapman
Department of Engineering Science, University of Oxford 1 , Oxford OX1 3PJ,
Daniel E. Eakins
Department of Engineering Science, University of Oxford 1 , Oxford OX1 3PJ,