Strain accommodation in inelastic deformation of glasses

P. Murali; U. Ramamurty; Vijay B. Shenoy

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Strain accommodation in inelastic deformation of glasses

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Motivated by recent experiments on metallic glasses, we examine the micromechanisms of strain accommodation including crystallization and void formation during inelastic deformation of glasses by employing molecular statics simulations. Our atomistic simulations with Lennard-Jones-like potentials suggests that a softer short range interaction between atoms favors crystallization. Compressive hydrostatic strain in the presence of a shear strain promotes crystallization whereas a tensile hydrostatic strain is found to induce voids. The deformation subsequent to the onset of crystallization includes partial reamorphization and recrystalliza-tion, suggesting important atomistic mechanisms of plastic dissipation in glasses.

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《Physical review, B. Condensed matter and materials physics》 |2007年第2期|024203.1-024203.5|共9页
作者
P. Murali; U. Ramamurty; Vijay B. Shenoy;
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作者单位

Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India;

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原文格式 PDF
正文语种英语
中图分类固体物理学;
关键词
deformation and plasticity (including yield; ductility; and superplasticity); glasses; nanocrystalline materials; molecular dynamics and particle methods;

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Strain accommodation in inelastic deformation of glasses

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