Analytical and numerical approaches to modelling severe plastic deformation
A Vinogradov, Y Estrin - Progress in Materials Science, 2018 - Elsevier
Severe plastic deformation (SPD) has established itself as a potent means of producing bulk
ultrafine grained and nanostructured materials. It has given rise to burgeoning research that …
ultrafine grained and nanostructured materials. It has given rise to burgeoning research that …
Analytic model of dislocation density evolution in fcc polycrystals accounting for dislocation generation, storage, and dynamic recovery mechanisms
A Hunter, DL Preston - International Journal of Plasticity, 2022 - Elsevier
An analytic model of the evolution of dislocation density in fcc polycrystals is described. The
evolution equations approximately account for most known dislocation storage, dynamic …
evolution equations approximately account for most known dislocation storage, dynamic …
Computational modeling of dislocation slip mechanisms in crystal plasticity: a short review
The bridge between classical continuum plasticity and crystal plasticity is becoming
narrower with continuously improved computational power and with engineers' desire to …
narrower with continuously improved computational power and with engineers' desire to …
The grain size effect on strain hardening and necking instability revisited from the dislocation density evolution approach
IS Yasnikov, Y Kaneko, M Uchida… - Materials Science and …, 2022 - Elsevier
Revisiting the classical topic of the strain hardening behaviour from a perspective of the
analytical model based on the evolution of dislocation density with strain, we extended the …
analytical model based on the evolution of dislocation density with strain, we extended the …
[HTML][HTML] Modeling ultrasonic vibration fatigue with unified mechanics theory
A series of ultrasonic vibration tests are performed on A656 grade steel samples, at a
frequency of 20 kHz. A fatigue life model based on the unified mechanics theory is …
frequency of 20 kHz. A fatigue life model based on the unified mechanics theory is …
Dynamic crystal plasticity modeling of single crystal tantalum and validation using Taylor cylinder impact tests
In this work, we extend a dislocation-density based constitutive theory for the dynamic
thermomechanical behavior of crystals to body centered cubic (BCC) tantalum. Strain rate …
thermomechanical behavior of crystals to body centered cubic (BCC) tantalum. Strain rate …
Temperature dependent deformation localization in irradiated tungsten
Tungsten is considered as the plasma-facing material in the nuclear fusion device, which
has to withstand coupled irradiation, mechanical and thermal conditions. To guarantee the …
has to withstand coupled irradiation, mechanical and thermal conditions. To guarantee the …
A physics-based crystal plasticity model for the prediction of the dislocation densities in micropillar compression
J Jeong, GZ Voyiadjis - Journal of the Mechanics and Physics of Solids, 2022 - Elsevier
A new nonlocal crystal plasticity model is developed to study the mechanical behavior of
face-centered cubic single crystals under heterogeneous inelastic deformation through a …
face-centered cubic single crystals under heterogeneous inelastic deformation through a …
Precipitate and dislocation-density interactions affecting strength and ductility in inconel alloys
Grain and precipitate morphologies, orientations, and distributions in precipitation hardened
nickel alloy 718 are directly affected by material processing, thermal and mechanical history …
nickel alloy 718 are directly affected by material processing, thermal and mechanical history …
A fundamental understanding of how dislocation densities affect strain hardening behavior in copper single crystalline micropillars
Under mechanical loading, the strain hardening behavior of crystalline face-centered cubic
(FCC) metals is of critical importance in determining fracture behavior and overall …
(FCC) metals is of critical importance in determining fracture behavior and overall …