Cubic elasticity and stress distribution at the free surface of polycrystals

M Sauzay - Acta Materialia, 2007 - Elsevier
Crystalline elasticity anisotropy is often neglected in the study of microplasticity mechanisms
of polycrystals, even for highly anisotropic metals such as copper and austenite. A finite …

[HTML][HTML] Elastic anisotropy and yield surface estimates of polycrystals

R Brenner, RA Lebensohn, O Castelnau - International Journal of Solids …, 2009 - Elsevier
Homogenization estimates based on the self-consistent scheme are customarily used to
describe the plastic yielding of polycrystals. Such estimates of the initial micro yield surface …

Direction-dependent elastic grain-interaction models–a comparative study

U Welzel*, S Fréour, EJ Mittemeijer - Philosophical Magazine, 2005 - Taylor & Francis
Mechanical and diffraction (X-ray) elastic constants (diffraction (X-ray) stress factors for
macroscopically elastically anisotropic specimens) can be calculated for polycrystalline …

Mechanical elastic constants and diffraction stress factors of macroscopically elastically anisotropic polycrystals: the effect of grain-shape (morphological) texture

N Koch, U Welzel §, H Wern… - Philosophical …, 2004 - Taylor & Francis
The effect of the grain-shape ('morphological') texture of a polycrystal on the mechanical
elastic constants and diffraction (X-ray) stress factors is investigated. To this end, the …

Ensemble averaging stress–strain fields in polycrystalline aggregates with a constrained surface microstructure–Part 2: Crystal plasticity

A Zeghadi, S Forest, AF Gourgues… - Philosophical …, 2007 - Taylor & Francis
The effect of three-dimensional (3D) grain morphology on the deformation at a free surface
in polycrystalline aggregates is investigated by means of a large-scale finite element and …

The role of elastic anisotropy on the macroscopic constitutive response and yield onset of cubic oligo-and polycrystals

RRT Vieira, D De Bortoli, MV De Carvalho… - International Journal of …, 2019 - Elsevier
The single crystal elastic anisotropy is one of the most important properties affecting the
macroscopic response of polycrystalline materials, both in the elastic regime and the early …

Effects of lattice misorientations on strain heterogeneities in FCC polycrystals

KS Cheong, EP Busso - Journal of the Mechanics and Physics of Solids, 2006 - Elsevier
It is well documented that the highly heterogeneous deformation behaviour and lattice
rotation typically observed within grains in a polycrystal are attributed to microstructural …

The evolution of Hooke's law due to texture development in FCC polycrystals

T Böhlke, A Bertram - International Journal of Solids and Structures, 2001 - Elsevier
Initially isotropic aggregates of crystalline grains show a texture-induced anisotropy of both
their inelastic and elastic behavior when submitted to large inelastic deformations. The latter …

[HTML][HTML] Neighborhood effect on the strain distribution in linearly elastic polycrystals: Part 1–Finite element study of the interaction between grains

R Bretin, M Lévesque, P Bocher - International Journal of Solids and …, 2019 - Elsevier
Polycrystals are full of all kinds of heterogeneities which introduce stress concentrations.
The local stress field in a grain does not depend solely on its crystallographic orientation. In …

Direction-dependent grain interaction in nickel and copper thin films, analysed by X-ray diffraction

A Kumar, U Welzel, EJ Mittemeijer - Acta materialia, 2006 - Elsevier
The elastic grain interaction due to surface anisotropy and morphological ('grain-shape')
texture in real, polycrystalline materials has been considered. It has been demonstrated for …