Nanostructured titanium-based materials for medical implants: Modeling and development

L Mishnaevsky Jr, E Levashov, RZ Valiev… - Materials Science and …, 2014 - Elsevier
Nanostructuring of titanium-based implantable devices can provide them with superior
mechanical properties and enhanced biocompatibity. An overview of advanced fabrication …

Misorientation-dependent transition between grain boundary migration and sliding in FCC metals

Q Huang, Q Zhao, H Zhou, W Yang - International Journal of Plasticity, 2022 - Elsevier
Grain boundaries (GBs) play a crucial role in the mechanical behaviors of nanocrystalline
materials. The dynamics of GBs depend on a variety of intrinsic and extrinsic factors …

Plastic strain localization and fatigue micro-crack formation in Hastelloy X

W Abuzaid, H Sehitoglu, J Lambros - Materials Science and Engineering: A, 2013 - Elsevier
In polycrystalline metals, local deformation heterogeneities induced by the microstructure
influence fatigue crack initiation and micro-crack propagation. The localization in plastic …

Field dislocation mechanics for heterogeneous elastic materials: a numerical spectral approach

KS Djaka, A Villani, V Taupin, L Capolungo… - Computer Methods in …, 2017 - Elsevier
Abstract Spectral methods using Fast Fourier Transform (FFT) algorithms have recently seen
a surge in interest in the mechanics of materials community. The present contribution …

Model of void nucleation on grain boundaries in dynamic failure of ductile metals incorporating interface incompatibility

H Sui, L Yu, W Liu, Y Liu, H Duan - Journal of the Mechanics and Physics of …, 2022 - Elsevier
Void nucleation on grain boundary (GB) has been regarded as an important mechanism of
damage initiation in ductile polycrystalline materials under dynamic loading. The high …

Twin boundaries as crack nucleation sites

C Blochwitz, W Tirschler - Crystal Research and Technology …, 2005 - Wiley Online Library
Coherent twin boundaries (TBs) in fcc metals are considered to have low energy.
Nevertheless, even TBs are preferred sites for crack nucleation in materials loaded at very …

Numerical implementation of static Field Dislocation Mechanics theory for periodic media

R Brenner, AJ Beaudoin, P Suquet… - Philosophical …, 2014 - Taylor & Francis
This paper investigates the implementation of Field Dislocation Mechanics (FDM) theory for
media with a periodic microstructure (ie the Nye dislocation tensor and the elastic moduli …

A micromechanics-based model for shear-coupled grain boundary migration in bicrystals

S Berbenni, B Paliwal, M Cherkaoui - International Journal of Plasticity, 2013 - Elsevier
A complete micromechanics-based model is here proposed using the concepts of
continuum kinematics and thermodynamics. A new constitutive framework is proposed to …

Incompatibility stresses at grain boundaries in Ni bicrystalline micropillars analyzed by an anisotropic model and slip activity

I Tiba, T Richeton, C Motz, H Vehoff, S Berbenni - Acta Materialia, 2015 - Elsevier
Incompatibility stresses can develop in bicrystals due to material elastic and plastic
anisotropies owing to different crystal orientations separated by grain boundaries. Here …

Microscopic incompatibility controlling plastic deformation of bicrystals

N Kheradmand, AF Knorr, M Marx, Y Deng - Acta Materialia, 2016 - Elsevier
Grain boundary (GB) resistance to slip transmission was investigated computationally and
experimentally as a function of GB type. A geometry-based computational method quantified …