Strength of Shock-Loaded Single-Crystal Tantalum [100] Determined using In Situ Broadband X-Ray Laue Diffraction

被引:58
|
作者
Comley, A. J. [1 ]
Maddox, B. R. [1 ]
Rudd, R. E. [1 ]
Prisbrey, S. T. [1 ]
Hawreliak, J. A. [1 ]
Orlikowski, D. A. [1 ]
Peterson, S. C. [1 ]
Satcher, J. H. [1 ]
Elsholz, A. J. [1 ]
Park, H. -S. [1 ]
Remington, B. A. [1 ]
Bazin, N. [2 ]
Foster, J. M. [2 ]
Graham, P. [2 ]
Park, N. [2 ]
Rosen, P. A. [2 ]
Rothman, S. R. [2 ]
Higginbotham, A. [3 ]
Suggit, M. [3 ]
Wark, J. S. [3 ]
机构
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[2] Atom Weap Estab, Reading RG7 4PR, Berks, England
[3] Univ Oxford, Clarendon Lab, Dept Phys, Oxford OX1 3PU, England
基金
英国工程与自然科学研究理事会;
关键词
CONSTITUTIVE MODEL; STRAIN-RATE; DEFORMATION; PRESSURE;
D O I
10.1103/PhysRevLett.110.115501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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. DOI: 10.1103/PhysRevLett.110.115501
引用
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页数:5
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