Strength of shock-loaded single-crystal tantalum [100] determined using in situ broadband x-ray Laue diffraction

A J Comley; B R Maddox; R E Rudd; S T Prisbrey; J A Hawreliak; D A Orlikowski; S C Peterson; J H Satcher; A J Elsholz; H-S Park; B A Remington; N Bazin; J M Foster; P Graham; N Park; P A Rosen; S R Rothman; A Higginbotham; M Suggit; J S Wark

doi:10.1103/PhysRevLett.110.115501

Strength of shock-loaded single-crystal tantalum [100] determined using in situ broadband x-ray Laue diffraction

Phys Rev Lett. 2013 Mar 15;110(11):115501. doi: 10.1103/PhysRevLett.110.115501. Epub 2013 Mar 11.

Authors

A J Comley¹, B R Maddox², R E Rudd², S T Prisbrey², J A Hawreliak², D A Orlikowski², S C Peterson², J H Satcher², A J Elsholz², H-S Park², B A Remington², N Bazin³, J M Foster³, P Graham³, N Park³, P A Rosen³, S R Rothman³, A Higginbotham⁴, M Suggit⁴, J S Wark⁴

Affiliations

¹ Lawrence Livermore National Laboratory, Livermore, California 94550, USA and Atomic Weapons Establishment, Aldermaston, Reading RG7 4PR, United Kingdom.
² Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
³ Atomic Weapons Establishment, Aldermaston, Reading RG7 4PR, United Kingdom.
⁴ Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.

PMID: 25166552
DOI: 10.1103/PhysRevLett.110.115501

Abstract

The strength of shock-loaded single crystal tantalum [100] has been experimentally determined using in situ broadband x-ray Laue diffraction to measure the strain state of the compressed crystal, and elastic constants calculated from first principles. The inferred strength reaches 35 GPa at a shock pressure of 181 GPa and is in excellent agreement with a multiscale strength model [N. R. Barton et al., J. Appl. Phys. 109, 073501 (2011)], which employs a hierarchy of simulation methods over a range of length scales to calculate strength from first principles.