On microstructures occuring in a model of finite-strain elastoplasticity involving a single slip-system

2000 ◽  
Vol 80 (S2) ◽  
pp. 421-422 ◽  
Author(s):  
C. Carstensen ◽  
K. Hackl
Keyword(s):  
Slip System ◽  
Finite Strain ◽  
Single Slip

scholarly journals Size Dependence of Dislocation-Mediated Plasticity in Ni Single Crystals: Molecular Dynamics Simulations

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
Xiaoyan Li ◽  
Wei Yang
Keyword(s):  
Slip System ◽  
Single Crystals ◽  
Temperature Effects ◽  
Size Dependence ◽  
Dislocation Dynamics ◽  
Deformation Mechanisms ◽  
Atomistic Simulations ◽  
Single Slip ◽  
System A ◽  
Dynamics Simulations

We investigate the compressive yielding of Ni single crystals by performing atomistic simulations with the sample diameters in the range of 5 nm ∼ 40 nm. Remarkable effects of sample sizes on the yield strength are observed in the nanopillars with two different orientations. The deformation mechanisms are characterized by massive dislocation activities within a single slip system and a nanoscale deformation twining in an octal slip system. A dislocation dynamics-based model is proposed to interpret the size and temperature effects in single slip-oriented nanopillars by considering the nucleation of incipient dislocations.

scholarly journals Connecting heterogeneous single slip to diffraction peak evolution in high-energy monochromatic X-ray experiments

2014 ◽  
Vol 47 (3) ◽  
pp. 887-898 ◽  
Author(s):  
Darren C. Pagan ◽  
Matthew P. Miller
Keyword(s):  
Slip System ◽  
High Energy ◽  
Single Slip ◽  
System Activity ◽  
X Ray ◽  
Single Crystal Specimen ◽  
Mosaic Crystals ◽  
Diffraction Peaks ◽  
Diffraction Microscopy

A forward modeling diffraction framework is introduced and employed to identify slip system activity in high-energy diffraction microscopy (HEDM) experiments. In the framework, diffraction simulations are conducted on virtual mosaic crystals with orientation gradients consistent with Nye's model of heterogeneous single slip. Simulated diffraction peaks are then compared against experimental measurements to identify slip system activity. Simulation results compared against diffraction data measuredin situfrom a silicon single-crystal specimen plastically deformed under single-slip conditions indicate that slip system activity can be identified during HEDM experiments.

scholarly journals Evaluation of Ductile Damage in Aluminum Single Crystal with Prior Activity of Single Slip System under Tensile Loading

2014 ◽  
Vol 63 (7) ◽  
pp. 533-538
Author(s):  
Jun-ichi SHIBANO ◽  
Kentaro KAJIWARA ◽  
Takuya TSUKAMOTO ◽  
Hirokazu KAWAI ◽  
Setsuo MIURA ◽  
...  
Keyword(s):  
Slip System ◽  
Single Crystal ◽  
Tensile Loading ◽  
Ductile Damage ◽  
Aluminum Single Crystal ◽  
Single Slip

Modeling of Single‐Slip Finite Strain Crystal Plasticity via the Virtual Element Method

PAMM ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Christoph Böhm ◽  
Blaž Hudobivnik ◽  
Fadi Aldakheel ◽  
Peter Wriggers
Keyword(s):  
Crystal Plasticity ◽  
Finite Strain ◽  
Virtual Element Method ◽  
Single Slip ◽  
Virtual Element ◽  
Element Method

Crystal rotation and microstructures in an aluminum single-slip system under tensile loading

2018 ◽  
Vol 146 ◽  
pp. 121-126
Author(s):  
Yutaka Yoshida ◽  
Jun-ichi Shibano ◽  
Ken-ichi Fukuda ◽  
Kengo Terabayashi ◽  
Masato Eguchi ◽  
...  
Keyword(s):  
Slip System ◽  
Tensile Loading ◽  
Single Slip ◽  
Crystal Rotation

In situ Tensile Experiments at Low Temperatures on Niobium Single Crystals by H.V.E.M.

1975 ◽  
Vol 33 ◽  
pp. 58-59
Author(s):  
F. H. Louchet ◽  
L. P. Kubin
Keyword(s):  
Electron Microscope ◽  
Transition Temperature ◽  
Low Temperature ◽  
Slip System ◽  
Low Temperatures ◽  
Tensile Axis ◽  
Image Intensifier ◽  
Screw Dislocations ◽  
Source Operation

Experiments have been carried out on the 3 MeV electron microscope in Toulouse. The low temperature straining holder has been previously described Images given by an image intensifier are recorded on magnetic tape.The microtensile niobium samples are cut in a plane with the two operative slip directions [111] and lying in the foil plane. The tensile axis is near [011].Our results concern:- The transition temperature of niobium near 220 K: at this temperature and below an increasing difference appears between the mobilities of the screw and edge portions of dislocations loops. Source operation and interactions between screw dislocations of different slip system have been recorded.

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