Results 31 to 40 of about 5,339,184 (339)

Influence of the Ductility Exponent on the Fatigue of Structural Steels

open access: yesMetals, 2023
Fatigue models using the strain-life method do not show exact conformity with the empirical results. Therefore, the use of the mean-stress correction approach is to be evaluated, with a particular focus on mild and higher-strength steel. The influence of
Martin Kreithner   +2 more
doaj   +1 more source

Load-depth sensing of isotropic, linear viscoelastic materials using rigid axisymmetric indenters [PDF]

open access: yes, 2016
An indentation experiment involves five variables: indenter shape, material behavior of the substrate, contact size, applied load and indentation depth. Only three variable are known afterwards, namely, indenter shape, plus load and depth as function of ...
de With, G.   +2 more
core   +9 more sources

Research on the properties of concrete with hemp shives

open access: yesBudownictwo o Zoptymalizowanym Potencjale Energetycznym, 2023
Nowadays a modern building must be energy efficient, i.e. distinguished by extremely lowenergy consumption. The building must be built according to the principles of sustainabil-ity, considering how it can be maximally friendly to the environment, and ...
Raimondas Šadzevičius   +2 more
doaj   +1 more source

High Quality Factor, High Sensitivity Metamaterial Graphene—Perfect Absorber Based on Critical Coupling Theory and Impedance Matching

open access: yesNanomaterials, 2020
By means of critical coupling and impedance matching theory, we have numerically simulated the perfect absorption of monolayer graphene. Through the critical coupling effect and impedance matching, we studied a perfect single-band absorption of the ...
Chunlian Cen   +8 more
doaj   +1 more source

Physical limits to sensing material properties

open access: yes, 2019
Constitutive relations describe how materials respond to external stimuli such as forces. All materials respond heterogeneously at small scales, which limits what a localized sensor can discern about the global constitution of a material.
Beroz, Farzan   +3 more
core   +1 more source

Computational Determination of Macroscopic Mechanical and Thermal Material Properties for Different Morphological Variants of Cast Iron

open access: yesMetals, 2021
The sensitivity of macroscopic mechanical and thermal properties of grey cast iron is computationally investigated for a variety of graphite morphologies over a wide temperature range.
Christoph Herrmann   +4 more
doaj   +1 more source

Temperature Patterns in TSA for Different Frequencies and Material Properties: A FEM Approach

open access: yesMathematical and Computational Applications, 2023
Thermography techniques are gaining popularity in structural integrity monitoring and analysis of mechanical systems’ behavior because they are contactless, non-intrusive, rapidly deployable, applicable to structures under harsh environments, and can be ...
Guilherme Duarte   +2 more
doaj   +1 more source

Silicon oxynitride based photonics [PDF]

open access: yes, 2008
Silicon oxynitride is a very attractive material for integrated optics. Besides possessing excellent optical properties it can be deposited with refractive indices varying over a wide range by tuning the material composition. In this contribution we will
Driessen, A.   +3 more
core   +3 more sources

Nanoribbon-ring cross perfect metamaterial graphene multi-band absorber in THz range and the sensing application

open access: yesResults in Physics, 2019
In this paper, we propose a graphene nanoribbon-ring cross structure. A multi-band absorber is obtained by a simple combination of graphene nanoribbons and and graphene ring. We obtain that the theoretical absorption of three resonance wavelengths are 99.
Zao Yi   +9 more
doaj   +1 more source

The Additive-Subtractive Process Chain - a Review

open access: yesJournal of Machine Engineering, 2023
In recent years, metal additive manufacturing developed intensively and became a relevant technology in industrial production of highly complex and function integrated parts.
Hans-Christian Moehring   +4 more
doaj   +1 more source

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