Strain rate dependency of dislocation plasticity

H Fan, Q Wang, JA El-Awady, D Raabe… - Nature …, 2021 - nature.com
dislocation dynamics and molecular dynamics simulations, we investigate the strain rate and
dislocation density dependence … , dislocation density, strain rate and dislocation mobility is …

Machine learning reveals strain-rate-dependent predictability of discrete dislocation plasticity

M Mińkowski, D Kurunczi-Papp, L Laurson - Physical Review Materials, 2022 - APS
strains the predictability vs strain rate relation becomes nonmonotonic. We show that for small
strains the rate dependence of deformation … the fraction of dislocations moving against the …

Ρ-cp: Open source dislocation density based crystal plasticity framework for simulating temperature-and strain rate-dependent deformation

A Patra, S Chaudhary, N Pai, T Ramgopal… - Computational Materials …, 2023 - Elsevier
strain compression. We then demonstrate application of the model to predict the strain
rate-dependent … model to predict the strain rate- and temperature-dependent deformation of body …

On the strain rate sensitivity of size-dependent plasticity in BCC iron at elevated temperatures: discrete dislocation dynamics investigation

P El Ters, MA Shehadeh - Mechanics of Materials, 2020 - Elsevier
… the temperature and strain rate dependency on size exponent at 0.5% strain offset to …
strain rate and is drag operated instead of line tension operated as in the lower strain rates; …

A novel crystal plasticity model incorporating transformation induced plasticity for a wide range of strain rates and temperatures

DS Connolly, CP Kohar, K Inal - International Journal of Plasticity, 2022 - Elsevier
strain-rate dependence formulation presented in this work is able to capture only positive
strain-rate dependence … variables (eg dislocation density, elastic strain, and plastic strain), this …

Dislocation density-based plasticity model from massive discrete dislocation dynamics database

S Akhondzadeh, RB Sills, N Bertin, W Cai - … of the Mechanics and Physics of …, 2020 - Elsevier
… Since all of the simulations analyzed in this section correspond to the same applied
strain rate ( 10 3 s − 1 ), we initially treat the rate-dependent correction as a constant. …

[HTML][HTML] Determination and analysis of the constitutive parameters of temperature-dependent dislocation-density-based crystal plasticity models

K Sedighiani, K Traka, F Roters, D Raabe… - Mechanics of …, 2022 - Elsevier
… constitutive dislocation models in crystal plasticity kinematic … a wide range of deformation
temperatures and strain rates with the … -dependent dislocation-density-based crystal plasticity

Modelling of strain rate dependent dislocation behavior of CNT/Al composites based on grain interior/grain boundary affected zone (GI/GBAZ)

B Sadeghi, J Qi, X Min, P Cavaliere - Materials Science and Engineering: A, 2021 - Elsevier
… density evolution during different strain rates is explored by using crystal plasticity finite
element modelling predictions by using ABAQUS software. According to the simulated literature […

Dislocation-obstacle interaction evolution in rate dependent plasticity of AlSi10Mg as-built microstructure by laser powder bed fusion

A Salandari-Rabori, BJ Diak, V Fallah - Materials Science and Engineering …, 2022 - Elsevier
… challenge our understanding of the rate controlling mechanisms for plasticity which are
important for structural applications. The strain rate dependent plasticity of as-built AlSi10Mg …

Geometrically necessary dislocation density evolution as a function of microstructure and strain rate

DL Foley, MI Latypov, X Zhao, J Hestroffer… - Materials Science and …, 2022 - Elsevier
… is a version of the rate-dependent crystal plasticity model by … a decrease in dislocation
density at higher strain rates, where we … of dislocation density in future studies of high strain rate