Results 1 to 10 of about 23,563 (273)

Comparative study on microstructure evolution and failure mechanisms of ordinary and refurbished EB-PVD TBC under cyclic oxidation

open access: yesJournal of Advanced Ceramics, 2023
Refurbishment of thermal barrier coating (TBC) has become a valuable technique to prolong the service life of high-temperature components. This study investigates the effect of the refurbishment process (coating removal and recoating) on the ...
Pan Li   +5 more
doaj   +1 more source

Reliability Testing of Wind Farm Devices Based on the Mean Time between Failures (MTBF)

open access: yesEnergies, 2023
Among the most valuable types of renewable energy available today is wind energy. The reliability of WF systems must be regularly evaluated at every stage of their “life,” from design to operation, if a wind farm energy system is to be effective and ...
Stanisław Duer   +6 more
doaj   +1 more source

Investigation on characteristics and performance of bearing spacer ring

open access: yesFrontiers in Materials, 2023
Bearings are widely used in the industry due to their ability to support the movement of rotating bodies. The spacer rings are a key component of double-row roller bearings; therefore, the characteristics and properties of the spacer rings have a ...
Jiang Guo   +7 more
doaj   +1 more source

CA-Chitosan effect on the time dependent serviceability of jute geotextile under unpaved roads

open access: yesJournal of Natural Fibers, 2022
Biodegradable jute geotextiles (JGTs) are an effective reinforcing material for unpaved roads, but its serviceability is limited because of faster microbial degradation. Different methods are in use to improve the serviceability of jute geotextiles.
Shubham Joshi, Vinay Kumar Midha
doaj   +1 more source

Flexural Performance of Reinforced Concrete Members with Steel Bars

open access: yesApplied Sciences, 2021
The use of high-tension bars to strengthen flexural members is gaining increasing interest. However, the applicability of current standards to such bars is uncertain, because there may not be a definite yield strength and it may be unclear whether the ...
Myunghwan Lim, Changhee Lee
doaj   +1 more source

Effects of Vertical Ground Motion on Pedestrian-Induced Vibrations of Footbridges: Numerical Analysis and Machine Learning-Based Prediction

open access: yesBuildings, 2022
Current codes and guidelines for the dynamic design of footbridges often only specify the pedestrian-induced excitations. However, earthquakes may occur during the passing stage of pedestrians in earthquake-prone regions.
Xinxin Wei, Bo Fu, Wenyan Wu, Xinrui Liu
doaj   +1 more source

Challenges Of ACI 318-19 Revisions To Flexural Design Of RC Beams Considering Higher-strength Reinforcements

open access: yesJournal of Applied Science and Engineering, 2022
For flexural design, the 2019 Building Code of the American Concrete Institute (ACI 318-19) revisions allows the use of high-strength reinforcements and concretes as well as new reinforcement strain limits for reinforced concrete (RC) structures.
J. D. Yau, Y. C. Lee, X. Y. Chen
doaj   +1 more source

Modeling of the process of time change in quantitative indicators of transmission reliability of multi-axle wheeled chassis at the design stage [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета
Multi-axle wheeled chassis are widely used to solve various transport and logistics tasks in areas with difficult terrain, unfavorable soil conditions, the presence of natural obstacles and the lack of minimum necessary transport infrastructure.
Tarichko V.I.   +2 more
doaj   +1 more source

Effects of Internal Force Redistribution on the Limit States of Continuous Beams with GFRP Reinforcement

open access: yesApplied Sciences, 2020
Fiber-reinforced polymers (FRP) are commonly used as internal reinforcement in RC structures in aggressive environments. The design of concrete elements reinforced with FRP bars is usually ruled by serviceability criteria rather than the ultimate limit ...
Nikola Baša   +3 more
doaj   +1 more source

Image Post-Processing Method for Quantification of Cracking in RC Precast Beams under Bending

open access: yesBuildings, 2018
Image processing methods are increasingly used in civil engineering, especially in the maintenance of concrete structures. Current digital cameras and post-processing methods allow verifying qualitatively the state of conservation of wide areas of ...
Albert Albareda-Valls   +3 more
doaj   +1 more source

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