The role of pre-existing heterogeneities in materials under shock and spall
There has been a challenge for many decades to understand how heterogeneities influence
the behavior of materials under shock loading, eventually leading to spall formation and …
the behavior of materials under shock loading, eventually leading to spall formation and …
Hydrogen embrittlement of ferritic steels: Observations on deformation microstructure, nanoscale dimples and failure by nanovoiding
While hydrogen embrittlement of ferritic steels has been a subject of significant research,
one of the major challenges in tackling hydrogen embrittlement is that the mechanism of …
one of the major challenges in tackling hydrogen embrittlement is that the mechanism of …
Deformation and failure in extreme regimes by high-energy pulsed lasers: a review
TP Remington, BA Remington, EN Hahn… - Materials Science and …, 2017 - Elsevier
The use of high-power pulsed lasers to probe the response of materials at pressures of
hundreds of GPa up to several TPa, time durations of nanoseconds, and strain rates of 10 6 …
hundreds of GPa up to several TPa, time durations of nanoseconds, and strain rates of 10 6 …
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 …
Formation and slip of pyramidal dislocations in hexagonal close-packed magnesium single crystals
Slip of pyramidal< c+ a> dislocations in hexagonal close-packed (hcp) crystals is a requisite
for accommodation of homogeneous c-axis deformation. However, fundamental aspects of …
for accommodation of homogeneous c-axis deformation. However, fundamental aspects of …
Plastic deformation in nanoindentation of tantalum: A new mechanism for prismatic loop formation
The mechanisms of deformation under a nanoindentation in tantalum, chosen as a model
body-centered cubic (bcc) metal, are identified and quantified. Molecular dynamics (MD) …
body-centered cubic (bcc) metal, are identified and quantified. Molecular dynamics (MD) …
Towards the ultimate strength of iron: spalling through laser shock
The ultimate strength of materials is reached at strain rates approaching the Debye
frequency, when the deformation time at the atomic scale approaches the time for atoms to …
frequency, when the deformation time at the atomic scale approaches the time for atoms to …
On the ultimate tensile strength of tantalum
Strain rate, temperature, and microstructure play a significant role in the mechanical
response of materials. Using non-equilibrium molecular dynamics simulations, we …
response of materials. Using non-equilibrium molecular dynamics simulations, we …
Atomistic simulation of tantalum nanoindentation: Effects of indenter diameter, penetration velocity, and interatomic potentials on defect mechanisms and evolution
Nanoindentation simulations are a helpful complement to experiments. There is a dearth of
nanoindentation simulations for bcc metals, partly due to the lack of computationally efficient …
nanoindentation simulations for bcc metals, partly due to the lack of computationally efficient …
Inverse Hall–Petch relationship in nanocrystalline tantalum
Tantalum polycrystals (grain sizes varying from 2.5 to 30 nm) generated by Voronoi
tessellation were subjected to tension and compression under uniaxial strain loading at …
tessellation were subjected to tension and compression under uniaxial strain loading at …