Results 111 to 120 of about 5,304,813 (404)
A peridynamic implementation of crystal plasticity
International Journal of Solids and Structures, 2014 AbstractThis paper presents the first application of peridynamics theory for crystal plasticity simulations. A state-based theory of peridynamics is used (Silling et al., 2007) where the forces in the bonds between particles are computed from stress tensors obtained from crystal plasticity.
Shang Sun, Veera Sundararaghavan
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Ni‐base superalloys produced using additive manufacturing (AM) have a different response to heat treatments when compared to their conventional counterparts. Due to such unpredictability, various alloys with industrial interest are currently overlooked in most prior AM research.
Guilherme Maziero Volpato +6 more
wiley +1 more source
Materials & 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
Thermodynamic theory of crystal plasticity: formulation and application to polycrystal fcc copper [PDF]
, 2019 We present a thermodynamic description of crystal plasticity. Our formulation is based on the Langer-Bouchbinder-Lookman thermodynamic dislocation theory (TDT), which asserts the fundamental importance of an effective temperature that describes the state of configurational disorder and therefore the dislocation density of the crystalline material.
arxiv +1 more source
Advanced Engineering Materials, EarlyView.The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling +12 more
wiley +1 more source
Crystals, 2017 In this study, a crystal plasticity finite element method (CPFEM) model has been developed to investigate the anisotropic plastic behavior of (001) aluminum single crystal during high-pressure torsion (HPT). The distributions of equivalent plastic strain
Peitang Wei +5 more
doaj +1 more source
, 2018 Nanocrystalline metals contain a large fraction of high-energy grain boundaries, which may be considered as glassy phases. Consequently, with decreasing grain size, a crossover in the deformation behaviour of nanocrystals to that of metallic glasses has ...
Albe, Karsten, Brink, Tobias
core +1 more source
Incorporating precipitation-related effects on plastic anisotropy of age-hardenable aluminium alloys into crystal plasticity constitutive models [PDF]
Crystal plasticity finite element simulations are frequently employed to predict the plastic anisotropy of polycrystalline metals based on their crystallographic texture. In age-hardenable aluminium alloys, however, the texture-induced plastic anisotropy is known to affect by precipitation.
arxiv +1 more source
Advanced Engineering Materials, EarlyView.This study reports for the first time the mechanical properties of brazed joints featuring Additively manufactured parts, such parts will likely need to be joined or combined with other components, and brazing offers a way of doing this for complex shapes without distortion. A new shear test methodology developed for such joints is also described.
Frances Livera +7 more
wiley +1 more source