Results 71 to 80 of about 270,844 (279)

Strain-Dependence of Surface Diffusion: Ag on Ag(111) and Pt(111)

, 1997
Using density-functional theory with the local-density approximation and the generalized gradient approximation we compute the energy barriers for surface diffusion for Ag on Pt(111), Ag on one monolayer of Ag on Pt(111), and Ag on Ag(111). The diffusion
%G. Rosenfeld, 1. This, A. Khein, A. P. Seitsonen, B. D. Yu, C. Ratsch, C. Roland, D. M. Ceperley, H. Brune, H. Brune, H. J. Monkhorst, H. T. Dobbs, J. A. Rodriguez, J. P. Perdew, J. P. Perdew, M. Scheffler, M. Scheffler, N. Troullier, N. Troullier, P. J. Feibelman   +19 more
core   +1 more source

Damage modeling employing strain gradient continuum theory

International Journal of Solids and Structures, 2017
A damage model for quasi-brittle materials embedded into the two dimensional C1 continuity triangular finite element formulation based on the strain gradient continuum theory is considered. The isotropic damage law is applied to the higher-order stress-strain constitutive model, which enables the analysis of both homogeneous and heterogeneous materials.
Putar, Filip, Lesičar, Tomislav, Tonković, Zdenko, Sorić, Jurica   +3 more
openaire   +2 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

A Brief Note on the Nix–Gao Strain Gradient Plasticity Theory

Metals, 2018
The mathematical nature of the flow rule for the strain gradient plasticity theory proposed by Nix and Gao (W.D. Nix and H. Gao, J Mech Phys Solids 46(3), 411(1998)) is discussed based on the paradigm developed by Gurtin and Anand (M.E.
A. S. Borokinni, Dabiao Liu
doaj   +1 more source

First-principles investigation of graphitic carbon nitride monolayer with embedded Fe atom

, 2017
Density-functional theory calculations with spin-polarized generalized gradient approximation and Hubbard $U$ correction is carried out to investigate the mechanical, structural, electronic and magnetic properties of graphitic heptazine with embedded ...
Abdullahi, Yusuf Zuntu, Halim, Mohd Mahadi, Hashim, Md. Roslan, Lim, Thong Leng, Yoon, Tiem Leong   +4 more
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Equilibrium equations and boundary conditions of strain gradient theory in arbitrary curvilinear coordinates

Journal of the Mechanical Behavior of Materials, 2014
Equilibrium equations and boundary conditions of the strain gradient theory in arbitrary curvilinear coordinates have been obtained. Their special form for an axisymmetric plane strain problem is also given.
Guzev Mikhail, Qi Chengzhi, Bai Jiping, Li Kairui   +3 more
doaj   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Some remarks on deformation, localization, and front propagation

Journal of the Mechanical Behavior of Materials, 2012
No abstract available.
Petsos George, Aifantis Elias C.
doaj   +1 more source

Phase field modeling of partially saturated deformable porous media

, 2016
A poromechanical model of partially saturated deformable porous media is proposed based on a phase field approach at modeling the behavior of the mixture of liquid water and wet air, which saturates the pore space, the phase field being the saturation ...
Sciarra, Giulio
core   +4 more sources