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

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 11期

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

页数：5

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