Crystal plasticity-based numerical simulations help understand the local deformation behavior of multiphase materials. It is known that in full phase simulations, 2-dimensional (2D) representative volume elements (RVEs) results are distinctly different from 3-dimensional (3D) RVEs. In this work, difference 2D and 3D RVEs investigated systematically, effect magnification, total strain compositio...

A strain gradient void-driven ductile fracture model of single crystals is proposed and applied to simulate crack propagation in oligo-crystal specimens. The based on a thermodynamical framework for homogenized porous solids unifying generalizing existing formulations. This crystal relies multi-surface representation plasticity which the standard Schmid law enhanced account porosity, including ...

This paper recounts the atmosphere in the Cavendish Laboratory during Lawrence Bragg's triumphant final years there through the eyes and the work of a young research student, and hence reflects some measure of Bragg's personality. The opportunity is taken to deal in detail with Bragg's contribution to our understanding of crystal plasticity, which is seldom described, being overshadowed by his ...

We demonstrate real-time resolved white beam Laue diffraction during compression of micron-sized focused ion beam milled single crystals Au pillars, revealing the dynamical correlation between microstructure and plasticity. The evolution of the Laue patterns of the Au pillars demonstrates the occurrence of crystal rotation and strengthening is explained by plasticity starting on a slip system t...

In the field of single crystal plasticity, different algorithms exist for solution constitutive equations. They can be grouped into rate independent and dependent approaches, where both classes are governed by inherent shortcomings, as discussed in, e.g., [3]. This contribution outlines an algorithmic formulation plasticity at small strains case relying on infeasible primal-dual interior point ...

A multiscale computational model is developed for determining the elasto-plastic behavior of polycrystal metals by employing a single crystal plasticity constitutive model that can capture the microstructural scale stress field on a finite element analysis (FEA) framework. The generalized method of cells (GMC) micromechanics model is used for homogenizing the local field quantities. At first, t...

*Correspondence: Demircan Canadinc, Rumeli Feneri Yolu, Sariyer, Istanbul, Turkey e-mail: [email protected] A multi-scale modeling approach was applied to predict the impact response of a strain rate sensitive high-manganese austenitic steel. The roles of texture, geometry, and strain rate sensitivity were successfully taken into account all at once by coupling crystal plasticity and finite e...