Spall strength dependence on grain size and strain rate in tantalum
We examine the effect of grain size on the dynamic failure of tantalum during laser-shock
compression and release and identify a significant effect of grain size on spall strength …
compression and release and identify a significant effect of grain size on spall strength …
Material hardness at strain rates beyond 106 s− 1 via high velocity microparticle impact indentation
Despite advances in mechanical testing at small scales and testing at high strain rates,
studies of mechanical behavior of materials remain largely qualitative in the regimes where …
studies of mechanical behavior of materials remain largely qualitative in the regimes where …
Orientation dependent spall strength of tantalum single crystals
It is generally recognized that single crystals exhibit orientation-dependent elastic and
plastic responses. However, it is less known how the dynamic tensile, or spall, strength …
plastic responses. However, it is less known how the dynamic tensile, or spall, strength …
[HTML][HTML] Understanding and predicting damage and failure at grain boundaries in BCC Ta
J Chen, EN Hahn, AM Dongare… - Journal of Applied Physics, 2019 - pubs.aip.org
Understanding the effect of grain boundaries (GBs) on the deformation and spall behavior is
critical to designing materials with tailored failure responses under dynamic loading. This …
critical to designing materials with tailored failure responses under dynamic loading. This …
Microstructure and twinning behavior of bcc tantalum under dynamic plastic deformation
In this paper, dynamic plastic deformation (DPD) of tantalum (Ta) was achieved by split
Hopkinson pressure bar and a variety of DPD conditions were set to systematically …
Hopkinson pressure bar and a variety of DPD conditions were set to systematically …
Intragranular void formation in shock-spalled tantalum: Mechanisms and governing factors
Intragranular void formation in polycrystalline tantalum is investigated with plate impact
experiments and molecular dynamics simulations, as regards its mechanisms and …
experiments and molecular dynamics simulations, as regards its mechanisms and …
[HTML][HTML] Atomic-scale observation of nucleation-and growth-controlled deformation twinning in body-centered cubic nanocrystals
Twinning is an essential mode of plastic deformation for achieving superior strength and
ductility in metallic nanostructures. It has been generally believed that twinning-induced …
ductility in metallic nanostructures. It has been generally believed that twinning-induced …
Symmetric tilt boundaries in body-centered cubic tantalum
Grain boundaries can play a significant role in the mechanical response of materials.
Atomistic simulations are used to investigate 79 coincidence site lattice grain boundary …
Atomistic simulations are used to investigate 79 coincidence site lattice grain boundary …
Associating damage nucleation and distribution with grain boundary characteristics in Ta
J Chen, SJ Fensin - Scripta Materialia, 2020 - Elsevier
The effect of grain boundary (GB) characteristics (as represented by misorientation angle)
on its dynamic response is investigated by sampling a large set of 185 GBs in Ta bi-crystals …
on its dynamic response is investigated by sampling a large set of 185 GBs in Ta bi-crystals …
Twinning mechanism asymmetry in body-centered cubic tantalum under [001] uniaxial compression/tension
Plasticity of body-centered cubic tantalum with preexisting dislocations is investigated under
[001] uniaxial compression/tension loading using a molecular dynamic simulation method …
[001] uniaxial compression/tension loading using a molecular dynamic simulation method …