Carl F. O. Dahlberg

TL;DR: In this paper, numerical simulations of various angles of wedge indenters into face-centered cubic single crystal were performed under plane strain conditions, and the experiments included ang ang angles of the indenters.

TL;DR: In this article, a microstructure of hexagonal grains is investigated using a plane strain finite element model, and three different microstructural deformation mechanisms can be identified: the standard plasticity case in which the material behaves as expected from coarse grained experiments, the nonlocal plasticity region where size of the micro-structure compared to some intrinsic length scale enhances the yield stress, and a third mechanism, active only in very fine grained microstructures, where the grains deform mainly in relative sliding and separation.

TL;DR: In this paper, a dissipative bulk formulation with energetic contribution from internal interface is presented to model the behavior of material interfaces at small length scales, and the implementation is tested by solving some examples that highlight the numerics and the effect of using the energetic interfaces as higher order boundary conditions.

TL;DR: In this paper, an aluminum bicrystal with a symmetric tilt and a coincident site lattice grain boundary was deformed plastically via wedge indentation under conditions that led to a plane strain deformation state.

TL;DR: In this article, a non-linear constrained Voronoi tessellation is used to construct polycrystalline microstructures using strain gradient plasticity (SGP) and a grain boundary deformation mechanism.