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15 results on '"Kodiyalam, Sanjay"'

8. Immersive and Interactive Exploration of Billion-Atom Systems

Author

Sharma, Ashish, primary, Nakano, Aiichiro, additional, Kalia, Rajiv K., additional, Vashishta, Priya, additional, Kodiyalam, Sanjay, additional, Miller, Paul, additional, Zhao, Wei, additional, Liu, Xinlian, additional, Campbell, Timothy J., additional, and Haas, Andy, additional

Published
2003
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10. Large-scale molecular dynamics simulations of materials on parallel computers.

Author

Nakano, Aiichiro, Campbell, Timothy J., Kalia, Rajiv K., Kodiyalam, Sanjay, Ogata, Shuji, Shimojo, Fuyuki, Vashishta, Priya, and Walsh, Phillip

Subjects
PARALLEL computers, CERAMICS
Abstract

Scalable space-time multiresolution algorithms implemented on massively parallel computers enable large-scale molecular dynamics simulations involving up to a billion atoms, which are applied to the study of nanosystems of great technological importance. These include sintering, structure, and mechanical properties of nanostructured ceramics and nanocomposites, structural transformation in semiconductor nanocrystals, nanoindentation, and oxidation of metallic nanoparticles. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2001

14. VIRTUAL COOPERATIVE ROBOTS

Author

Driggs, Duane, primary, Williams, Jeron, additional, Baylor, Sakawa, additional, Kodiyalam, Sanjay, additional, Rama, Venkata, additional, Sabbella, Reddy, additional, Sekeroglu, Kazim, additional, and Jana, Amitava, additional

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15. Multimillion Atom Simulations of Nanostructured Materials on Parallel Computers: Sintering and Consolidation, Fracture, and Oxidation

Author

Vashishta, Priya, Bachlechner, Martina E., Campbell, Timothy, Kalia, Rajiv K., Kikuchi, Hideaki, Kodiyalam, Sanjay, Nakano, Aiichiro, Ogata, Shuji, Shimojo, Fuyuki, and Walsh, Phillip

Abstract

Multiresolution molecular-dynamics approach for multimillion atom simulations has been used to investigate structural properties, mechanical failure in ceramic materials, and atomic-level stresses in nanoscale semiconductor/ceramic mesas (Si/Si3N4). Crack propagation and fracture in silicon nitride, silicon carbide, gallium arsenide, and nanophase ceramics are investigated. We observe a crossover from slow to rapid fracture and a correlation between the speed of crack propagation and morphology of fracture surface. A 100 million atom simulation is carried out to study crack propagation in GaAs. Mechanical failure in the Si/Si3N4 interface is studied by applying tensile strain parallel to the interface. Ten million atom molecular dynamics simulations are performed to determine atomic-level stress distributions in a 54 nm nanopixel on a 0.1 µm silicon substrate. Multimillion atom simulations of oxidation of aluminum nanoclusters and nanoindentation in silicon nitride are also discussed.

Published
2013
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