Dynamic tensile fracture of iron: Molecular dynamics simulations and micromechanical model based on dislocation plasticity
VV Pogorelko, AE Mayer - International Journal of Plasticity, 2023 - Elsevier
Molecular dynamics (MD) shows a difference in the mechanisms of fracture of iron under
uniaxial and isotropic tension. Uniaxial tension leads to the formation of a complex …
uniaxial and isotropic tension. Uniaxial tension leads to the formation of a complex …
Void growth based inter-granular ductile fracture in strain gradient polycrystalline plasticity
T Yalçinkaya, İT Tandoğan, İ Özdemir - International Journal of Plasticity, 2021 - Elsevier
The precipitation hardened, high strength aerospace alloys (eg Al 7000 alloy series) suffer
from loss of fracture toughness due to the heat treatment leading to intergranular ductile …
from loss of fracture toughness due to the heat treatment leading to intergranular ductile …
Deformation, dislocation evolution and the non-Schmid effect in body-centered-cubic single-and polycrystal tantalum
A physically-informed continuum crystal plasticity model is presented to elucidate
deformation mechanisms, dislocation evolution and the non-Schmid effect in body-centered …
deformation mechanisms, dislocation evolution and the non-Schmid effect in body-centered …
Model of void nucleation on grain boundaries in dynamic failure of ductile metals incorporating interface incompatibility
Void nucleation on grain boundary (GB) has been regarded as an important mechanism of
damage initiation in ductile polycrystalline materials under dynamic loading. The high …
damage initiation in ductile polycrystalline materials under dynamic loading. The high …
Integral-based non-local approach to ductile damage and mixed-mode fracture
AV Shutov, VS Klyuchantsev - Engineering Fracture Mechanics, 2023 - Elsevier
The present study focuses on the application of an integral-based approach for constructing
non-local ductile damage models. The incorporation of non-locality into the damage …
non-local ductile damage models. The incorporation of non-locality into the damage …
Subgrain geometrically necessary dislocation density mapping in spalled Ta in three dimensions
In this work, the intragranular distributions of the densities of geometrically necessary
dislocations (GNDs) generated in a polycrystalline tantalum (Ta) sample loaded in shock …
dislocations (GNDs) generated in a polycrystalline tantalum (Ta) sample loaded in shock …
Multimodal 3D characterization of voids in shock-loaded tantalum: Implications for ductile spallation mechanisms
Predicting the failure of crystalline materials at high strain rates requires knowledge of the
underlying failure mechanisms and their dependence on microstructure. In this study, a 3D …
underlying failure mechanisms and their dependence on microstructure. In this study, a 3D …
Multi-scale spallation model for single-crystal ductile metals incorporating microscopic mechanism of void nucleation
Spall strength characterizes the tensile performance of materials under high strain rates.
However, theoretical prediction of the spall strength has long been a big challenge since it …
However, theoretical prediction of the spall strength has long been a big challenge since it …
Large strain integral-based nonlocal simulation of ductile damage with application to mode-I fracture
AV Shutov, VS Klyuchantsev - International Journal of Plasticity, 2021 - Elsevier
The integral approach to nonlocal ductile damage is developed to enable numerically stable
and physically reasonable simulations of crack initiation and propagation in metals. A …
and physically reasonable simulations of crack initiation and propagation in metals. A …
CEBoosting: Online sparse identification of dynamical systems with regime switching by causation entropy boosting
Regime switching is ubiquitous in many complex dynamical systems with multiscale
features, chaotic behavior, and extreme events. In this paper, a causation entropy boosting …
features, chaotic behavior, and extreme events. In this paper, a causation entropy boosting …