Finite-element modeling of diamond deformation at multimegabar pressures

被引：71
|
作者：
Merkel, S
Hemley, RJ
Mao, HK
机构：
[1] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA
[2] Carnegie Inst Washington, Ctr High Pressure Res, Washington, DC 20015 USA
来源：
APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 05期
关键词：
D O I：
10.1063/1.123031
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Finite-element modeling calculations reveal the origin of the remarkably large elastic strains in diamond observed in recent experiments at multimegabar pressures. This approach provides a means to determine the pressure dependence of the yield strength of strong materials used in the gasket, and allows us to examine quantities that are not accessible experimentally such as the stress and strain relations in diamond. Stress tensor elements are obtained near the tip where large modifications in the optical properties of diamond have been observed. (C) 1999 American Institute of Physics. [S0003-6951(99)02505-X].
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页码：656 / 658
页数：3
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