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Atomistic to continuum mechanics description of crystal defects with dislocation density fields: application to dislocations and grain boundaries
The atomic structure of crystal defects such as dislocations, grain or phase boundaries,
control these defects' properties: their mobility, ability to cross-slip, or solute segregation …
control these defects' properties: their mobility, ability to cross-slip, or solute segregation …
Stress-induced amorphization triggers deformation in the lithospheric mantle
The mechanical properties of olivine-rich rocks are key to determining the mechanical
coupling between Earth's lithosphere and asthenosphere. In crystalline materials, the motion …
coupling between Earth's lithosphere and asthenosphere. In crystalline materials, the motion …
Disclinations provide the missing mechanism for deforming olivine-rich rocks in the mantle
Mantle flow involves large strains of polymineral aggregates. The strongly anisotropic plastic
response of each individual grain in the aggregate results from the interactions between …
response of each individual grain in the aggregate results from the interactions between …
A multiscale model of grain boundary structure and energy: From atomistics to a continuum description
Grain boundaries play an important role in the mechanical and physical properties of
polycrystalline metals. While continuum macroscale simulations are appropriate for …
polycrystalline metals. While continuum macroscale simulations are appropriate for …
Cosserat-phase-field modeling of grain nucleation in plastically deformed single crystals
Thermomechanical processing of crystalline materials induces microstructural evolution
such as grain nucleation and growth. In the numerical simulation of these processes, grain …
such as grain nucleation and growth. In the numerical simulation of these processes, grain …
Euromech 563 Cisterna di Latina 17–21 March 2014 Generalized continua and their applications to the design of composites and metamaterials: A review of …
In the present paper, a rational report on Euromech 563, Generalized continua and their
applications to the design of composites and metamaterials (Cisterna di Latina 17–21 March …
applications to the design of composites and metamaterials (Cisterna di Latina 17–21 March …
A cosserat crystal plasticity and phase field theory for grain boundary migration
The microstructure evolution due to thermomechanical treatment of metals can largely be
described by viscoplastic deformation, nucleation and grain growth. These processes take …
described by viscoplastic deformation, nucleation and grain growth. These processes take …
Crystal plasticity simulation of strain aging phenomena in α-titanium at room temperature
Strain aging phenomena are shown to affect the viscoplastic behavior of commercially pure
α-titanium at room temperature. A yield stress anomaly corresponding to static strain aging …
α-titanium at room temperature. A yield stress anomaly corresponding to static strain aging …
Inspection of free energy functions in gradient crystal plasticity
The dislocation density tensor computed as the curl of plastic distortion is regarded as a new
constitutive variable in crystal plasticity. The dependence of the free energy function on the …
constitutive variable in crystal plasticity. The dependence of the free energy function on the …
Density-based crystal plasticity: From the discrete to the continuum
Because of the enormous range of time and space scales involved in dislocation dynamics,
plastic modeling at macroscale requires a continuous formulation. In this paper, we present …
plastic modeling at macroscale requires a continuous formulation. In this paper, we present …