Results 11 to 20 of about 123,713 (291)

Influence of Crystal Plasticity Parameters on the Strain Hardening Behavior of Polycrystals

open access: yesCrystals, 2021
The effective mechanical properties of a polycrystal depend directly on the single-crystal properties of each grain and its crystallographic orientation with respect to the load axis.
Mahdieh Shahmardani   +2 more
doaj   +1 more source

Glassy features of crystal plasticity [PDF]

open access: yes, 2016
Crystal plasticity occurs by deformation bursts due to the avalanche-like motion of dislocations. Here we perform extensive numerical simulations of a three-dimensional dislocation dynamics model under quasistatic stress-controlled loading.
Alava, Mikko J.   +4 more
core   +3 more sources

Micromechanical investigation of the influence of defects in high cycle fatigue [PDF]

open access: yes, 2014
This study aims to analyse the influence of geometrical defects (notches and holes) on the high cycle fatigue behaviour of an electrolytic copper based on finite element simulations of 2D polycrystalline aggregates.
GUERCHAIS, Raphaël   +3 more
core   +6 more sources

Crystal Plasticity Modeling and Experimental Validation with an Orientation Distribution Function for Ti-7Al Alloy

open access: yesMetals, 2017
An orientation distribution function based model is used for micromechanical modeling of the titanium-aluminum alloys, Ti-0 wt % Al and Ti-7 wt % Al, which are in demand for many aerospace applications. This probability descriptor based modeling approach
Pınar Acar   +2 more
doaj   +1 more source

Plastic-embedded protein crystals [PDF]

open access: yesJournal of Synchrotron Radiation, 2006
Rapid vitrification followed by the replacement of the vitrified water by a solvent (freeze substitution) and then resin is a widely used procedure for preparing biological samples for electron microscopy. The resulting plastic-embedded samples permit convenient room-temperature sectioning (microtomy) and can yield well preserved cellular structures ...
Ravelli, R.   +7 more
openaire   +3 more sources

Temperature-dependent constitutive modeling of a magnesium alloy ZEK100 sheet using crystal plasticity models combined with in situ high-energy X-ray diffraction experiment

open access: yesJournal of Magnesium and Alloys, 2022
A multiscale crystal plasticity model accounting for temperature-dependent mechanical behaviors without introducing a larger number of unknown parameters was developed.
Hyuk Jong Bong   +3 more
doaj   +1 more source

Investigate earing of TWIP steel sheet during deep-drawing process by using crystal plasticity constitutive model

open access: yesMATEC Web of Conferences, 2015
By combining the nonlinear finite element analysis techniques and crystal plasticity theory, the macroscopic mechanical behaviour of crystalline material, the texture evolution and earing-type characteristics are simulated accurately.
Yang J.   +4 more
doaj   +1 more source

Anisotropic shock response of columnar nanocrystalline Cu [PDF]

open access: yes, 2010
We perform molecular dynamics simulations to investigate the shock response of idealized hexagonal columnar nanocrystalline Cu, including plasticity, local shear, and spall damage during dynamic compression, release, and tension.
Davis L. Tonks   +5 more
core   +2 more sources

Forming of Magnesium — Crystal Plasticity and Plastic Potentials [PDF]

open access: yesAIP Conference Proceedings, 2007
Hexagonal close‐packed (hcp) metals show a deformation behavior, which is quite different from that of materials with cubic crystalline structure. As a consequence, rolled or extruded products of magnesium and its alloys exhibit a strong anisotropy and an unlike yielding in tension and compression.
Graff, S., Steglich, D., Brocks, W.
openaire   +2 more sources

Review of γ’ Rafting Behavior in Nickel-Based Superalloys: Crystal Plasticity and Phase-Field Simulation

open access: yesCrystals, 2020
Rafting is an important phenomenon of the microstructure evolution in nickel-based single crystal superalloys at elevated temperature. Understanding the rafting mechanism and its effect on the microstructure evolution is of great importance in ...
Zhiyuan Yu   +4 more
doaj   +1 more source

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