A coupled dislocation dynamics-continuum barrier field model with application to irradiated materials

A new computational methodology for 3-dimensional (3D) Discrete Dislocation Dynamics (DDD) in barrier-strengthened materials is developed. We couple the discrete 3D DDD framework with the Finite Element Method (FEM) solution of a continuum field equation for the evolution of dispersed barriers. Coup...

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Veröffentlicht in:	International journal of plasticity 2018-05, Vol.104 (C), p.54-67
Hauptverfasser:	Cui, Yinan, Po, Giacomo, Ghoniem, Nasr M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Barriers Computer simulation Crystal dislocations Crystal lattices Crystal structure Dislocation dynamics Dislocations Finite element analysis Finite element method Flow stability Fluid dynamics Hydrogen embrittlement Irradiation hardening Mathematical models Plastic deformation Plastic flow Plastic flow localization Plastic instability Plastics Precipitation strengthening Radiation dosage Radiation hardening Statistical analysis Strain hardening Three dimensional models
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