Shock wave propagation, plasticity, and void collapse in open-cell nanoporous Ta

Abstract

We systematically investigate the wave propagation, plasticity and void collapse, as well as the effects of porosity, specific surface area and impact velocity, in a set of open-cell nanoporous Ta, during shock compression, via performing large-scale non-equilibrium molecular dynamics simulations.

Shock-induced plastic deformation of nanopowder Ti during consolidation and spallation

“…To characterize the microstructure deformation, the CNA 37 and slip vector methods 38,39 are also implemented. To better reveal orientation effects and visualize the plasticity, such as the twins within the shocked crystals, we also performed OM analysis, following standard electron backscatter diffraction (EBSD) analysis.…”

Vanadium Pentaoksida (V2O5) : Termodinamika Molecular dan Interaksi Ion dalam Larutan

“…Ketika pelarut diuapkan, ion tidak ikut menguap, tetapi tetap berada di dalam larutan yang tertinggal , dan bila sudah cukup pekat terjadilah nukleasi (154)(155)(156) dan mengkristal menjadi senyawa ionic. Proses ini dapat dinamakan dengan cara pembentukan mineral evaporit (157)(158)(159)(160)(161)(162).…”

Structure of Shock Wave in Nanoscale Porous Nickel at Pressures up to 7 GPa

“…The purpose of the present study was to investigate this feature and describe the precursor and compaction wave fronts in terms of the strain rate, wave front rise time, and thickness. These experimentally defined parameters of the shock compaction of nanoporous metal could provide a basis for computational works because wave fronts are considered in simulations [ 5 , 6 , 11 , 12 ]. Generally, experimental data are needed to develop novel theoretical models to describe the behavior of materials under dynamic loading [ 13 ].…”