86 citations · 370 across the 73 of their papers we have counts for
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Nanocrystalline grain boundary engineering: Increasing 3 boundary fraction in pure Ni with thermomechanical treatments
David B. Bober, Mukul Kumar, Timothy J. Rupert
Grain boundary networks should play a dominant role in determining the mechanical properties of nanocrystalline metals. However, these networks are difficult to characterize and th…
Solid Solution Strengthening and Softening Due to Collective Nanocrystalline Deformation Physics
Timothy J. Rupert
Solid solution effects on the strength of the finest nanocrystalline grain sizes are studied with molecular dynamics simulations of different Cu-based alloys. We find evidence of b…
Tracking Microstructure of Crystalline Materials: A Post-Processing Algorithm for Atomistic Simulations
Jason F. Panzarino, Timothy J. Rupert
Atomistic simulations have become a powerful tool in materials research due to the extremely fine spatial and temporal resolution provided by such techniques. In order to understan…
Strain localization in a nanocrystalline metal: Atomic mechanisms and the effect of testing conditions
Timothy J. Rupert
Molecular dynamics simulations are used to investigate strain localization in a model nanocrystalline metal. The atomic mechanisms of such catastrophic failure are first studied fo…
Emergence of localized plasticity and failure through shear banding during microcompression of a nanocrystalline alloy
Amirhossein Khalajhedayati, Timothy J. Rupert
Microcompression testing is used to probe the uniaxial stress-strain response of a nanocrystalline alloy, with an emphasis on exploring how grain size and grain boundary relaxation…
Quantitative tracking of grain structure evolution in a nanocrystalline metal during cyclic loading
Jason F. Panzarino, Jesus J. Ramos, Timothy J. Rupert
Molecular dynamics simulations were used to quantify mechanically-induced structural evolution in nanocrystalline Al with an average grain size of 5 nm. A polycrystalline sample wa…