Journal ArticleDOI
A geometrically nonlinear finite element model of nanomaterials with consideration of surface effects
TLDR
In this article, a geometrically nonlinear finite element (FE) model of nanomaterials with considering surface effects is developed, and a numerical example, analysis of InAs quantum dot (QD) on GaAs (001) substrate, is given to verify the validity of the method and demonstrate surface effects on the stress fields of QDs.About:
This article is published in Finite Elements in Analysis and Design.The article was published on 2009-05-01. It has received 28 citations till now. The article focuses on the topics: Finite element method & Elastic energy.read more
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Recent advances in friction and lubrication of graphene and other 2D materials: Mechanisms and applications
Lincong Liu,Ming Zhou,Long Jin,Liangchuan Li,Youtang Mo,Guoshi Su,Xiao Li,Hongwei Zhu,Yu Tian +8 more
TL;DR: In this article, the basic nanoscale friction mechanisms of 2D materials including interfacial friction and surface friction mechanisms are summarized and a review of reports on lubrication mechanisms based on the film-formation, self-healing, and ball bearing mechanisms and applications based on lubricant additives, nanoscaling films, and space lubrication materials of two-dimensional materials in detail.
Journal ArticleDOI
A continuum model for the mechanical behavior of nanowires including surface and surface-induced initial stresses
TL;DR: In this paper, a new formulation of the Euler-Bernoulli beam model for nanowires is developed through the incremental deformation theory, in which effects of the surface stress, the surface-induced initial stress and surface elasticity are naturally incorporated.
Journal ArticleDOI
A finite element framework for continua with boundary energies. Part II: The three-dimensional case
Ali Javili,Paul Steinmann +1 more
TL;DR: In this paper, the boundary potentials are modeled by convected curvilinear coordinates attached to the boundary and the corresponding derivations completely based on a tensorial representation are carried out.
Journal ArticleDOI
Nanozymes: Activity origin, catalytic mechanism, and biological application
TL;DR: In this article, the source of nanozyme catalytic activities from two aspects, including the structure comparison of natural enzymes and nanozymes and the nano effects of nanomaterials, are analyzed.
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An extended finite element/level set method to study surface effects on the mechanical behavior and properties of nanomaterials
TL;DR: In this paper, a new approach based on coupling the extended finite element method (XFEM) and level sets is proposed to study surface and interface effects on the mechanical behavior of nanostructures.
References
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Book
The finite element method
TL;DR: In this article, the methodes are numeriques and the fonction de forme reference record created on 2005-11-18, modified on 2016-08-08.
Journal ArticleDOI
Size-dependent elastic properties of nanosized structural elements
Ronald E. Miller,Vijay B. Shenoy +1 more
TL;DR: In this article, a simple model is constructed to predict the size dependence of the effective stiffness of the structural element, and the important length scale in the problem is identified to be the ratio of the surface elastic modulus to the elastic modulation of the bulk.
Journal ArticleDOI
Surface and interface stress effects in thin films
TL;DR: In this article, surface and interface stresses in solids are defined and their role in the thermodynamics of solids is presented, along with a review of selected theoretical calculations and experimental measurements.
Journal ArticleDOI
Surface free energy and its effect on the elastic behavior of nano-sized particles, wires and films
TL;DR: In this paper, a framework is developed to incorporate the surface free energy into the continuum theory of mechanics, and it is demonstrated that the overall elastic behavior of structural elements (such as particles, wires, films) is size-dependent.
Journal ArticleDOI
Effect of surfaces on the size-dependent elastic state of nano-inhomogeneities
TL;DR: In this article, the effect of surface energies, strains, and stresses on the size-dependent elastic state of embedded inhomogeneities is investigated and closed-form expressions are derived for the elastic state with surface effects using a variational formulation, showing that surface elasticity can significantly alter the fundamental nature of stress state at nanometer length scales.
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Finite element characterization of the size-dependent mechanical behaviour in nanosystems
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Size-dependent elastic properties of nanosized structural elements
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