Analytic expressions for displacement fields of dislocation loops in anisotropic cubic crystals

Modeling of Fault Co-seismic Displacement Fields in Elastic Environments Based on Spherical Dislocation Theory

This research is based on the modeling of co-seismic deformations due to the fault movement in the elastic environments, and we can obtain the deformations generated in the faults. Here, modeling of the co-seismic displacement field is based on the analytical method with two spherical dislocation model and half-space dislocation model. The difference in displacement field from two spherical and...

Equilibrium shape of dislocation shear loops in anisotropic -Fe

We present dislocation dynamics (DD) simulations of shear loops in a highly anisotropic linear elastic crystal. The equilibrium shapes of the loops are determined for the four principal slip systems of the body-centered-cubic lattice, using empirical elastic constants for α-Fe, for a range of temperatures over which its elastic anisotropy varies considerably. The results are compared with those...

Self-force on dislocation segments in anisotropic crystals.

A dislocation segment in a crystal experiences a 'self-force', by virtue of the orientation dependence of its elastic energy. If the crystal is elastically isotropic, this force is manifested as a couple acting to rotate the segment toward the lower energy of the pure screw orientation (i.e. acting to align the dislocation line with its Burgers vector). If the crystal is anisotropic, there are ...

Elastic Constants and Displacement Fields in Crystals with Point Defects

Analytic Regularization of Uniform Cubic B-spline Deformation Fields

Image registration is inherently ill-posed, and lacks a unique solution. In the context of medical applications, it is desirable to avoid solutions that describe physically unsound deformations within the patient anatomy. Among the accepted methods of regularizing non-rigid image registration to provide solutions applicable to medical practice is the penalty of thin-plate bending energy. In thi...