Results 1 to 10 of about 16,450,513 (295)

Finite Fracture Mechanics and Cohesive Crack Model_Size effects through a unified formulation

open access: yesFracture and Structural Integrity, 2022
Finite Fracture Mechanics and Cohesive Crack Model can effectively predict the strength of plain, cracked or notched structural components, overcoming the classical drawbacks of Linear Elastic Fracture Mechanics. Aim of the present work is to investigate
F. Ferrian   +3 more
doaj   +1 more source

Size-dependent Vibration Analysis of Non-uniform Mass Sensor Nanobeams [PDF]

open access: yesMechanics of Advanced Composite Structures, 2021
In the present paper, the exact modeling and frequency analysis of the mass sensor nanobeam are investigated based on a higher-order elasticity theory with taking into account the longitudinal discontinuity. The energy equations of the beam are expressed
mostafa Nazemizadeh   +3 more
doaj   +1 more source

Development of the Concurrent Multiscale Discrete-Continuum Model and Its Application in Plasticity Size Effect

open access: yesCrystals, 2022
A concurrent multiscale model coupling discrete dislocation dynamics to the finite element method is developed to investigate the plastic mechanism of materials at micron/submicron length scales.
Zhenting Zhang   +2 more
doaj   +1 more source

Plastically-Induced Volume Deformation of Nanocrystalline α-Fe with a <110> Columnar Structure

open access: yesMetals, 2020
Volume changes accompanying the plastic deformation at 300 K of nanocrystalline samples of α-Fe with a columnar grain structure possessing a 〈11¯0〉 random fiber texture has been obtained from molecular dynamics (MD) simulations. The samples were strained
J. Gil Sevillano   +2 more
doaj   +1 more source

Unlocking the Potential of Sub‐Nanometer Pd Catalysts for Electrochemical Hydrogen Peroxide Production

open access: yesAdvanced Materials Interfaces, 2023
The utilization of nanoscale catalysts represents a valuable and promising strategy for augmenting catalytic performance while mitigating the reliance on expensive noble metals.
Ji Sik Choi   +8 more
doaj   +1 more source

Micromachining – Review of Literature from 1980 to 2010 [PDF]

open access: yesInterdisciplinary Description of Complex Systems, 2014
Trend of miniaturization of products and consequently its components nowadays can be evident in almost every production field. To accomplish requirements imposed by miniaturization micromachining proved to be a satisfied manufacturing technique.
Zdenka Keran   +2 more
doaj   +1 more source

Vibration Sensitivity Analysis of Nano-mechanical Piezo-Laminated Beams with Consideration of Size Effects [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2020
The presented article investigates vibration sensitivity analysis of Nano-mechanical piezo-laminated beams with consideration of size effects. To do this, the vibration governing equation of the stepped Nano-mechanical piezo-laminated beam is firstly ...
mostafa nazemizadeh   +2 more
doaj   +1 more source

Enhancement of Extraordinary Size Effect on CaRuO3 Ultrathin Films

open access: yesAdvanced Electronic Materials, 2023
In a previous report, 25 Å periodic metal–insulator transitions dependent on the thickness of CaRuO3 ultrathin films were discovered. Compared to the conventional size effect caused by quantum wells, the rate of change is a few billions of times greater ...
M. Sakoda   +3 more
doaj   +1 more source

Experimental Evidence of Specimen-Size Effects on EN-AW6082 Aluminum Alloy in VHCF Regime

open access: yesApplied Sciences, 2021
The present paper investigates the influence of the specimen size of EN-AW6082 wrought aluminium alloy subjected to very high cycle fatigue (VHCF) tests.
Stefano Invernizzi   +2 more
doaj   +1 more source

Size effects for micro-fractured bodies under compressive loading [PDF]

open access: yesTheoretical and Applied Mechanics, 2011
A two-scale damage model for micro-fractured media is constructed using the asymptotic homogenization method. At the small-scale level, we consider locally periodic microstructures of two-types: micro-cracks nucleating from pores and wing-type micro ...
Dobrovat A.M.   +3 more
doaj   +1 more source

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