Results 271 to 280 of about 32,459 (292)

Rotated sandpiles: The role of grain reorganization and inertia

Physical Review E, 1996
We present a coupled-map lattice model of a sandpile which relaxes via the dual mechanisms of surface flow and bulk reorganization. We focus on the situation where reorganization dominates flow and examine the response of our model to rotation; the event size distribution is analyzed as a function of the model parameters.
, Barker, , Mehta
openaire   +2 more sources

The cosserat continuum, a model for grain rotations in metals?

International Journal of Plasticity, 1989
Torsional experiments with aluminium cylinders and tubes were carried out, and the grain rotations were measured by means of the v. Laue-method. Their local average agrees in a satisfactory manner with the predictions made from the point of view of a rigid/plastic Cosserat theory.
W. Diepolder, V. Mannl, H. Lippmann
openaire   +1 more source

Viscous grain-boundary sliding and grain rotation accommodated by grain-boundary diffusion

Acta Materialia, 2005
When the sliding of a viscous grain boundary is accommodated by grain-boundary diffusion, we evaluate the sliding rate and the stress distribution on the boundary, by employing the energy-balance method developed by Mori et al. [Mori T, Nakasone Y, Taya M, Wakashima K. Phil Mag Lett 1997;75:359 and Mori T, Koda M, Monzen R, Mura T.
B.-N. Kim, K. Hiraga, K. Morita
openaire   +1 more source

Importance of Rotation Systems in Grains

2021
Rotasyon, toprak kalitesinin artırılması, verim ve kalite parametrelerinin artırılması için uygun bitkilerin uygun teknikler kullanılarak üretim sistemine önceden ve ard arda dahil edilmesidir. Tarımsal üretim yapan bireyler, tarımsal alanlarda yüksek gelir elde etmek için toprak kalitesini koruyarak düşük üretim maliyetleri ve yüksek pazar fiyatları ...
NANELİ, İsmail, BÜYÜKTAVŞAN, Ömer Faruk   +1 more
openaire   +1 more source

Nickel Carbide as a Source of Grain Rotation in Epitaxial Graphene

ACS Nano, 2012
Graphene has a close lattice match to the Ni(111) surface, resulting in a preference for 1 × 1 configurations. We have investigated graphene grown by chemical vapor deposition (CVD) on the nickel carbide (Ni(2)C) reconstruction of Ni(111) with scanning tunneling microscopy (STM).
Jacobson, Peter, Stoeger, Bernhard, Garhofer, Andreas, Parkinson, Gareth S., Schmid, Michael, Caudillo, Roman, Mittendorfer, Florian, Redinger, Josef, Diebold, Ulrike   +8 more
openaire   +4 more sources

Recent advances in DEM simulations of grains in a rotating drum

Soft Matter, 2008
The discrete elements method (DEM) has been widely used in the past decade to study a wide variety of granular systems. The use of numerical simulations constitutes an interesting alternative to the experiment as they can shed new light on a phenomenon as they can overcome experimental obstacles. A lot of granular phenomena can be studied in 2D or with
Richard, Patrick, Taberlet, Nicolas
openaire   +2 more sources

Deformation-induced grain rotation and grain boundary formation achieved through dislocation-disclination reactions in polycrystalline hexagonal close-packed metals

Acta Materialia, 2023
Chunfeng Du, Yipeng Gao, Min Zha
exaly  

Theory of diffusion-accommodated grain rotation in columnar polycrystalline microstructures

Acta Materialia, 2001
Dorel Moldovan
exaly  

Deformation induced columnar grain rotation in nanotwinned metals

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2020
Yu-Jin Li, Chia-Wei Hsu, Yi-Hsin Ting
exaly  

Concurrent grain boundary motion and grain rotation under an applied stress

Acta Materialia, 2011
Tatiana Gorkaya, Konstantin D Molodov, Dmitri A Molodov   +2 more
exaly