Discrete Simulation of the Consolidation of Nano-sized Aggregated Powders

Balakrishnan, A.; Pizette, Patrick; Martín, Christophe

doi:10.1063/1.3179827

Cited by 2 publications

(1 citation statement)

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“…Suryanarayanan and Sastry [12] developed a theoretical model on the basis of a micro-mechanism model to simulate the densification of nano-particles under uniaxial and hydrostatic pressing. Balakrishnan et al [13] simulated the consolidation of nano-particles by applying the discrete element method (DEM).…”

Section: Introductionmentioning

confidence: 99%

Compaction simulation of nano-crystalline metals with molecular dynamics analysis

et al. 2016

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Abstract. The molecular-dynamics analysis is presented for 3D compaction simulation of nano-crystalline metals under uniaxial compaction process. The nano-crystalline metals consist of nickel and aluminum nano-particles, which are mixed with specified proportions. The EAM pair-potential is employed to model the formation of nano-particles at different temperatures, number of nano-particles, and mixing ratio of Ni and Al nano-particles to form the component into the shape of a die. The die-walls are modeled using the Lennard-Jones inter-atomic potential between the atoms of nano-particles and die-walls. The forming process is model in uniaxial compression, which is simulated until the full-dense condition is attained at constant temperature. Numerical simulations are performed by presenting the densification of nano-particles at different deformations and distribution of dislocations. Finally, the evolutions of relative density with the pressure as well as the stress-strain curves are depicted during the compaction process.

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Section: Introductionmentioning

confidence: 99%