Results 121 to 130 of about 16,602,702 (299)
, 2016 Ultrasonic fatigue tests were conducted at the stress ratios of -1, -0.5, -0.1, 0.1 and 0.5 for a Ti-6Al-4V alloy in high-cycle and very-high-cycle fatigue regimes. Experimental results showed that faceted crack initiation was the main failure mode for
孙成奇 +6 more
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MODELS OF FATIGUE LIFE CURVES IN FATIGUE LIFE CALCULATIONS OF MACHINE ELEMENTS – EXAMPLES OF RESEARCH [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2014 In the paper there was attempted to analyse models of fatigue life curves possible to apply in calculations of fatigue life of machine elements. The analysis was limited to fatigue life curves in stress approach enabling cyclic stresses from the range of
Grzegorz SZALA, Bogdan LIGAJ
doaj
MATEC Web of Conferences, 2018 Austenitic stainless steels are the wide-spread materials, used mainly in the power industry. In that kind of engineering application, structural parts of rotating elements reach during their lifetime very high numbers of loading cycles, exceeding 107 ...
Jambor Michal +4 more
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Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley +1 more source
Comparison of two models of numerical simulation of low cycle fatigue of a plastic material with small grid inclusions [PDF]
, 2013 Theory of Cells and a numerical FE method based on strain cyclic plasticity, damage model and technology of died elements were used for a prediction of the fatigue life of a metal matrix composite material.
Azmetov, Khakim +2 more
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A NEW METHOD TO ESTIMATE FINITE LIFE OF NOTCHED COMPONENTS UNDER VARIABLE AMPLITUDE FATIGUE LOADING
Jixie qiangdu, 2016 Based on uniaxial fatigue research,starting from the fatigue mechanism,a strain energy density and strength interference model based on the strain cyclic loading has been studied.
ZHANG Wei, HU MingMin
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Advanced Functional Materials, EarlyView.A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding +14 more
wiley +1 more source
Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites
Advanced Functional Materials, EarlyView.Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto +4 more
wiley +1 more source
Shift of S–N curves in some fatigue models due to loading cycle asymmetry
HeliyonFatigue (Wöhler's or S–N) curves are usually represented by upper stress of loading cycle in dependence on the logarithm of numbers of cycles to fracture.
Jan Kohout, Stanislav Věchet
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