Results 21 to 30 of about 127,612 (336)

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

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

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

Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel

open access: yesNuclear Materials and Energy, 2022
A multiscale crystal plasticity finite element model, which combines molecular dynamics with crystal plasticity theory, is proposed. In this model, the evolution equations for partial- and full-absorption dislocation loops are utilized.
Pandong Lin, Junfeng Nie, Meidan Liu
doaj   +1 more source

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

Fluctuation phenomena in crystal plasticity - a continuum model [PDF]

open access: yes, 2005
On microscopic and mesoscopic scales, plastic flow of crystals is characterized by large intrinsic fluctuations. Deformation by crystallographic slip occurs in a sequence of intermittent bursts ('slip avalanches') with power-law size distribution. In the
Michael Zaiser   +4 more
core   +2 more sources

Investigation into the Effects of Prior Plasticity on Creep Accumulation in 316H Stainless Steel

open access: yesPhysical Sciences Forum, 2022
Steel components in the boilers of nuclear reactors are subject to high temperatures and varying loading conditions. This can introduce time-dependent and time-independent plasticity, which can interact with one another.
Christopher Allen   +2 more
doaj   +1 more source

Effects of pore diameter and B2–NiTi crystal on plasticity of amorphous Ni–Ti alloy based on molecular dynamics simulation

open access: yesJournal of Materials Research and Technology, 2023
The poor plasticity of metallic glasses (MGs) limits its applicability as engineering materials. Therefore, it is particularly important to find ways to improve the plasticity of metallic glasses.
Yu Zhou   +5 more
doaj   +1 more source

Effect of crystal orientation on indentation-induced residual stress field: Simulation and experimental validation

open access: yesMaterials & Design, 2019
Experimental determination of local residual stress fields beneath a spherical indent on a ⟨001⟩ copper single crystal revealed the presence of a significant tensile residual stress zone.
S. Breumier   +4 more
doaj   +1 more source

Shock compression and spallation of single crystal tantalum [PDF]

open access: yes, 2012
We present molecular dynamics simulations of shock-induced plasticity and spall damage in single crystal Ta described by a recently developed embedded-atom-method (EAM) potential and a volumedependent qEAM potential.
An, Q.   +6 more
core   +1 more source

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